Publications, Tor Arne Johansen, NTNU

2024

Journal publications

• R. E. G. Mounet, U. D. Nielsen, A. H. Brodtkorp, H. Øveraas, A. Dallolio, T. A. Johansen, Data-driven method for hydrodynamic model estimation applied to an unmanned surface vehicle, Measurement, 2024
• I. B. Hagen, K. S. Knutsen, T. A. Johansen, E. Brekke, Exploration of COLREG-relevant Parameters from Historical AIS-data, J. Navigation, 2024; https://doi.org/10.1017/S0373463324000109
• B. A. Kristiansen, J. T. Gravdahl, S. Gros, T. A. Johansen, Energy Optimal Attitude Control and Task Execution for a Solar-Powered Spacecraft, IEEE Trans. Control Systems Technology, 2024
• G. M. Fragoso, A. Dallolio, S. Grant, J. L. Garrett, I. Ellingsen, G. Johnsen, T. A. Johansen, The Role of Rapid Changes in Weather on Phytoplankton Spring Bloom Dynamics from mid-Norway using multiple observational platforms, Journal of Geophysical Research – Oceans, 2024, Vol. 129, Article e2023JC020415; http://dx.doi.org/10.1029/2023JC020415
• A. Faltynkova, C. E. Deschênes, A. Zolich, M. Wagner, T. A. Johansen, G. Johnsen, Use of an uncrewed surface vehicle and near infrared hyperspectral imaging for sampling and analysis of aquatic microplastics, Marine Pollution Bulletin, Volume 201, Article 116214, 2024; https://doi.org/10.1016/j.marpolbul.2024.116214
• E. Bøhn, E. Coates, D. Reinhardt, T. A. Johansen, Data-Efficient Deep Reinforcement Learning for Attitude Control of Fixed-Wing UAVs: Field Experiments, IEEE Transactions on Neural Networks and Learning Systems, Vol. 35, pp. 3168-3180, 2024; https://doi.org/10.1109/TNNLS.2023.3263430
• T. Tengesdal, S. V. Rothmund, E. A. Basso, H. Schmidt-Didlaukies, T. A. Johansen, Obstacle Intention Awareness in Automatic Ship Collision Avoidance: Full-Scale Experiments in Confined Waters, Field Robotics, Vol. 4, pp. 211–245, 2024; https://doi.org/10.55417/fr.2024007
• C. Tran, H. Øveraas, T. A. Johansen, ROV Recovery with Wave-motion Compensation using Model Predictive Control, Ocean Engineering, Vol. 293, Article 116764, 2024; https://doi.org/10.1016/j.oceaneng.2024.116764
• M. Akdağ, T. A. Pedersen, T. I. Fossen, T. A. Johansen, A Decision Support System for Autonomous Ship Trajectory Planning, Ocean Engineering, Vol. 292, article 116562, 2024 ; https://doi.org/10.1016/j.oceaneng.2023.116562
• F. Navarro-Medina, A. E. Oudijk, M. B. Henriksen, U. Garcia-Luis, A. Gomez-San Juan, T. A. Johansen, Structural Thermal Optical Performance (STOP) analysis and experimental verification of an hyperspectral imager for the HYPSO CubeSat, Optics and Lasers in Engineering, Vol. 172, article 107919, 2024; https://doi.org/10.1016/j.optlaseng.2023.107919

Conference publications

• M. Okuhara, T. H. Bryne, K. Gryte, T. A. Johansen, Elevation Angle Redundancy from Barometric Altitude in Multipath-affected Phased Array Radio Navigation of UAVs, International Conference on Unmanned Aircraft Systems (ICUAS), 2024
• M. L. Sollie, K. Gryte, T. H. Bryne, T. A. Johansen, Automatic Recovery of Fixed-wing Unmanned Aerial Vehicle Using Bluetooth Angle-of-Arrival Navigation, International Conference on Unmanned Aircraft Systems (ICUAS), 2024
• K. Gryte, T. H. Bryne, T. A. Johansen, Phased Array Radio Navigation: UAV Field Tests During GNSS Jamming, International Conference on Unmanned Aircraft Systems (ICUAS), 2024
• B. Løw-Hansen, R. Hann, T. A. Johansen, C. Deiler, Time-Domain System Identification and Validation of Small Fixed-Wing UAV Dynamics, AIAA SciTech Conf, 2024
• A. Hager, J. Krauser, V. Ziegler, T. H. Bryne, T. A. Johansen, Magnetic anomaly navigation with quantum sensors in commercial aviation, ESA Swarm 10th Anniversary and Science Conference, Copenhagen, 2024
• N. A Ghindaoanu, K. Gryte, D. Reinhardt, T. A. Johansen, Control of Fixed-Wing UAVs in Icing Conditions Using Nonlinear Model Predictive Control, European Control Conference (ECC), 2024
• T. Tengesdal, S. Gros, T. A. Johansen, Real-time Feasible Usage of Radial Basis Functions for Representing Unstructured Environments in Optimal Ship Control, American Control Conference (ACC), 2024
• D. Sbarbaro, T. A. Johansen, J. Yañezc, A Prediction Error Adaptive Kalman filter for on-line spectral measurement correction and concentration estimation, PSE/ESCAPE, Firenze, 2024
• E. A. Oudijk, A. F. Romero, J. A. Justo, O. K. Hasler, T. A. Johansen, Phytoplankton Recognition in Modelled Hyperspectral Data Using Machine Learning and Classical Data Analysis Methods, 13th EARSeL Workshop on Imaging Spectroscopy, 2024
• S. Bakken, G. Johnsen, T. A. Johansen, First Look at Mondrian Forests for Hyperspectral Secchi Depth Estimation, 13th EARSeL Workshop on Imaging Spectroscopy, 2024

 

2023

Journal publications

• M. Okuhara, T. H. Bryne, K. Gryte, T. A. Johansen, Phased Array Radio Navigation System on UAVs: In-flight Calibration, Journal of Intelligent & Robotic Systems, Vol. 109, Article 51, 2023 ; https://doi.org/10.1007/s10846-023-01977-1
• I. B. Hagen, O, Vassbotn, M. Skogvold, T. A. Johansen, E. Brekke, Safety and COLREGS Evaluation for Marine Collision Avoidance Algorithms, Ocean Engineering, Vol. 288, Part 1, Article 115991, 2023 ; https://doi.org/10.1016/j.oceaneng.2023.115991
• S. V. Rothmund, C. Thieme, I. B. Utne, T. A. Johansen, A Bayesian Approach to Risk-Based Autonomy, with Applications to Contact-Based Drone Inspections, Journal of Intelligent & Robotic Systems, Vol. 109, Article 31, 2023 ; https://doi.org/10.1007/s10846-023-01934-y
• D. D. Langer, M. Orlandic, S. Bakken, R. Birkeland, J. L. Garrett, T. A. Johansen, A. J. Sørensen, Robust and Reconfigurable On-Board Processing for a Hyperspectral Imaging Small Satellite, Remote Sensing, Vol. 15, Article 3756, 2023; https://doi.org/10.3390/rs15153756
• S. Blindheim, I. B. Utne, T. A. Johansen, Risk-Based Supervisory Control for Autonomous Ship Navigation, Journal of Marine Science and Technology, 2023; https://doi.org/10.1007/s00773-023-00945-6
• F. Navarro-Medina, A. E. Oudijk, M. B. Henriksen, A. Gjersvik, F. S. Grønvold, T. A. Johansen, Experimental set-up of a thermal-vacuum chamber for thermal model in-house correlation and characterization of the HYPSO hyperspectral imager, CEAS Space Journal, 2023; https://doi.org/10.1007/s12567-023-00501-3
• H. Øveraas, H. S. Halvorsen, O. Landstad, V. Smines, T. A. Johansen, Dynamic Positioning using Model Predictive Control with Short-Term Wave Prediction, IEEE J. Oceanic Engineering, Vol. 48, pp. 1065-1077, 2023; https://doi.org/10.1109/JOE.2023.3288969 
• G. E. Berget, J. Eidsvik, M. O. Alver, T. A. Johansen, Dynamic Stochastic Modeling for Adaptive Sampling of Environmental Variables Using an AUV, Autonomous Robots, vol. 47, pp. 483–502, 2023 ; https://doi.org/10.1007/s10514-023-10095-8
• H. Øveraas, A. Dallolio, P. De La Torre, T. A. Johansen, Monitoring the Growth of Coastal Algae Blooms in Harsh Weather Conditions Using a Wave-Propelled ASV: Challenges and Lessons Learned, Vol. 3, pp.392-412, Field Robotics, 2023; DOI: 10.55417/fr.2023012
• E. Bøhn, S. Gros, S. Moe, T. A. Johansen, Optimization of the Model Predictive Control Meta-Parameters Through Reinforcement Learning, Engineering Applications of Artificial Intelligence, Volume 123, Part A, Article 106211, 2023; https://doi.org/10.1016/j.engappai.2023.106211
• T. Johansen, S. Blindheim, T. R. Torben, I. Utne, T. A. Johansen, A. J. Sørensen, Development and testing of a risk-based control system for autonomous ships, Reliability Engineering & System Safety, Volume 234, Article 109195, 2023; https://doi.org/10.1016/j.ress.2023.109195
• C. Tran, I. Gushkov, K. Nordvik, S. T. Røang, S. L. Brodalen, B. Ommani, V. Hassani, T. I. Fossen, V. Smines, T. A. Johansen, Operability analysis of control system for ROV launch-and-recovery from autonomous surface vessel, Ocean Engineering, Vol. 277, Article, 114272, 2023; https://doi.org/10.1016/j.oceaneng.2023.114272
• R. R. Negenborn, F. Goerlandt, T. A. Johansen, P. Slaets, O. A. V. Banda, T. Vanelslander, N. P. Ventikos, Autonomous ships are on the horizon: here’s what we need to know, Nature, vol. 615, pp. 30-33, 2023; DOI: https://doi.org/10.1038/d41586-023-00557-5
• M. L. Sollie, T. H. Bryne, K. Gryte, T. A. Johansen, Reducing Ground Reflection Multipath Errors for Bluetooth Angle-of-Arrival Estimation by Combining Independent Antenna Arrays, IEEE Antennas and Wireless Propagation Letters, Vol. 22, pp. 1391-1395, 2023; https://doi.org/10.1109/LAWP.2023.3243166
• S. Blindheim, B. Rokseth, T. A. Johansen, Autonomous Machinery Management for Supervisory Risk Control using Particle Swarm Optimization, J. Marine Science and Engineering, Vol. 11, 327, 2023; https://doi.org/10.3390/jmse11020327
• S. Bakken, M. B. Henriksen, R. Birkeland, D. D. Langer, A. Oudijk, S. Berg, F. Gran-Jansen, Y. Pursley, J. Garrett, E. Honoré-Livermore, M. E. Grøtte, B. A. Kristiansen, M. Orlandic, P. Gader, A. J. Sørensen, F. Sigernes, G. Johnsen, T. A. Johansen, HYPSO-1 CubeSat: First Images and In-Orbit Results, Remote Sensing, 2023; https://doi.org/10.3390/rs15030755
• D. R. Williamson, G.M. Fragoso, S. Majaneva, A. Dallolio, D.Ø. Halvorsen, O. Hasler, A.E. Oudijk, D.D. Langer, T.A. Johansen, G. Johnsen, A. Stahl, M. Ludvigsen, and J.L. Garrett. 2023. Monitoring algal blooms with complementary sensors on multiple spatial and temporal scales. In Frontiers in Ocean Observing: Emerging Technologies for Understanding and Managing a Changing Ocean, Oceanography, Vol. 36, 2023. https://doi.org/10.5670/oceanog.2023.s1.11
• H. Helgesen, T. Fuglestad, K. Cisek, B. Vik, Ø. K. Kjerstad, T. A. Johansen, Inertial Navigation aided by Ultra-Wideband Ranging for Ship Docking and Harbor Maneuvering, IEEE Journal of Oceanic Engineering, Vol. 48, pp. 27-42, 2023; https://doi.org/10.1109/JOE.2022.3186474
• J. E. Walmsness, H. H. Helgesen, S. Larsen, G. K. M. Kufoalor, T. A. Johansen, Automatic Dock-to-Dock Control System for Surface Vessels using Bumpless Transfer, Ocean Engineering, Vol 268, article 113425, 2023; https://doi.org/10.1016/j.oceaneng.2022.113425

Conference publications

• M. Haugum, A. Stahl, T. A. Johansen, In-situ Segmentation and Post-Processing of Phytoplankton Image Data Captured Onboard an Autonomous Surface Vehicle, 20^th Int. Conference on Harmful Algae (ICHA), Hiroshima, Japan, 2023
• M. Roedele, K. Vasstein, T. A. Johansen, GNSS-Independent Maritime Navigation Using Monocular Camera Images with Digital Elevation Map, IEEE Symposium Sensor Data Fusion and International Conference on Multisensor Fusion and Integration, Bonn, 2023
• J. A. Justo, J. Garrett, D. D. Langer, M. B. Henriksen, R. T. Ionescu, T. A. Johansen, An Open Hyperspectral Dataset with Sea-Land-Cloud Ground-Truth from the HYPSO-1 Satellite, 13th Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing (WHISPERS), Athens, 2023
• S. Bakken, K. Luis, G. Johnsen, T. A. Johansen, Evaluating hyperspectral Secchi depth retrieval through hybrid modeling and regression, 13th Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing (WHISPERS), Athens, 2023
• C. Penne, J. Garrett, T. A. Johansen, M. Orlandić, R. Heggebø, Independent component analysis: A tool for algal bloom detection, 13th Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing (WHISPERS), Athens, 2023
• B. A. Kristiansen, D. Langer, J. Garrett, S. Berg, J. T. Gravdahl, T. A. Johansen, Accuracy of a slew maneuver for the HYPSO-1 hyperspectral imaging satellite — in-orbit results, 13th Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing (WHISPERS), Athens, 2023
• M. B. Henriksen, F. Sigernes, T. A. Johansen, Comparing Filters for Correction of Second Order Diffraction Effects in Hyperspectral Imagers, 13th Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing (WHISPERS), Athens, 2023
• C. E. Deschênes, A. Zolich, M. Wagner, G. Johnsen, T. A. Johansen, A. Faltynkova, Unmanned vehicle and hyperspectral imager for a more rapid microplastics sampling and analysis, IEEE/MTS OCEANS, Biloxi, 2023
• A. E. Oudijk, T. A. Johansen, G. Johnsen, M. A. Alver, Simulating Hyperspectral Datacubes for Ocean Color: A Foundation for Phytoplankton Recognition in Spectral Signatures, IEEE/MTS OCEANS, Biloxi, 2023
• S. Bakken, D. D. Langer, J. L. Garrett, S. Y. Le Moan, T. A. Johansen, Spatial Resolution Enhancement of Hyperspectral Images from Miniaturized Sensors, SPIE Sensors + Imaging, Amsterdam, 2023
• S. Berg, S. Bakken, R. Birkeland, C. Chiatante, J. L. Garrett, Tor A. Johansen, Ground Systems Software for Automatic Operation of the HYPSO-2 Hyperspectral Imaging Satellite, SPIE Sensors + Imaging, Amsterdam, 2023
• M. Haugum, G. Fragoso, M. Henriksen, A. Zolich, T. A. Johansen, Autonomous Flow-Through RGB and Hyperspectral Imaging for Unmanned Surface Vehicles, IEEE/MTS OCEANS, Limerick, 2023
• B. A. Kristiansen, J. T. Gravdahl, S. Gros, T. A. Johansen, Energy optimal attitude control of a satellite actuated by magnetorquers in minimum time, 7th IEEE Conference on Control Technology and Applications, Barbados, 2023
• J. Hatleskog, T. A. Johansen, E. Bjørne, T. Utstumo, Line-of-Sight Path Following for Input-Constrained Differential Drive Mobile Robots, 7th IEEE Conference on Control Technology and Applications, Barbados, 2023
• D. P. Reinhardt, S. Gros, T. A. Johansen, Fixed-Wing UAV Path-Following Control via NMPC on the Lowest Level, 7th IEEE Conference on Control Technology and Applications, Barbados, 2023
• T. Tengesdal, T. A. Johansen, Simulation Framework and Software Environment for Evaluating Automatic Ship Collision Avoidance Algorithms, 7th IEEE Conference on Control Technology and Applications, Barbados, 2023
• H. A. Tran, T. A. Johansen, R. R. Negenborn, Collision avoidance of autonomous ships in inland waterways – A survey and open research problems, ICMASS 2023
• D. Mahipala, T. A. Johansen,             Model Predictive Control for Path Following and Collision-Avoidance of Autonomous Ships in Inland Waterways, 31st Mediterranean Conference on Control and Automation (MED), Cyprus, 2023
• K. Hancke, A. G. Hagen, T. A. Johansen, J. Garrett, A.-B. Salberg, K. Kalbekken, J. E. Sample, K. Ø. Kvile, T. Bekkby, L. Little, R. N. Poulsen, M. Ghareeb, T. Buls, Ø. T. Ødegaard, H. Gundersen, Drones for mapping benthic habitats and the SeaBee infrastructure, International Symposium on Marine Geological and Biological Habitat Mapping (GeoHab '23). Saint-Gilles-Les-Bains, La Réunion, France, 2023.
• D. D. Langer, T. A. Johansen, A, J. Sørensen, Method for consistent along-track sharpness in a push-broom imaging system, IGARSS 2023
• O. K. Hasler, A. Winter, D. D. Langer, T. H. Bryne, T. A. Johansen, Lightweight UAV payload for image spectroscopy and atmospheric irradiance measurements, IGARSS 2023
• D. G. Sbarbaro, T. A. Johansen, J. Yañez, Adaptive Kalman filter for on-line spectroscopic sensor corrections, 9th International Conference on Control, Decision and Information Technologies (CoDIT), Rome, 2023
• S. V. Rothmund, H. E. Haugen, G. D. Veglo, E. Brekke, T. A. Johansen, Validation of ship intention model for maritime collision avoidance control using historical AIS data, European Control Conference (ECC), Bucharest, Romania, 2023
• O. K. Hasler, T. H. Bryne, T. A. Johansen, Robust Phased Array Navigation in Reflective Prone Areas, European Control Conference (ECC), Bucharest, Romania, 2023
• D. Lupu, I. Necoara, T. C. Ionescu, L. M. Ghinea, J. Garrett, T. A. Johansen, Dimensionality reduction of hyperspectral images using an ICA-based stochastic second-order optimization algorithm, European Control Conference (ECC), Bucharest, Romania, 2023
• B. Løw-Hansen, R. Hann, B. N. Stovner, T. A. Johansen, UAV Icing: A survey of recent developments in ice detection methods, IFAC World Congress, Yokohama, 2023
• M. Okuhara, T. H. Bryne, K. Gryte, T. A. Johansen, Phased Array Radio Navigation System on UAVs: Real-Time Implementation of In-flight Calibration, IFAC World Congress, Yokohama, 2023
• H. Anh Tran, T. A. Johansen, R. Negenborn, A collision avoidance algorithm with intention prediction for inland waterways ships, IFAC World Congress, Yokohama, 2023
• M. E. Grøtte, J. T. Gravdahl, T. A. Johansen, Constrained Control Allocation for Prioritized Hybrid Actuators in Spacecraft Attitude Control, IFAC World Congress, Yokohama, 2023
• R. Wallner, B. A. Gran, T. A. Pedersen, T. A. Johansen, M. A. Lundteigen, Identifying Test Scenarios for Simulated Safety Demonstration using STPA and CAST, ESREL, 2023
• M. Cheung, R. Hann, T. A. Johansen, UAV Icing: Icing Cases for Validation of Particle Swarm Path Planning Methods, International Conference on Icing of Aircraft, Engines, and Structures, 2023
• B. Løw-Hansen, N. C. Müller, E. M. Coates, T. A. Johansen, R. Hann, Identification of a UAV Propulsion System in Icing Conditions, International Conference on Icing of Aircraft, Engines, and Structures, 2023
• A. Winter, N. Sokolova, A. Morrison, O. Hasler, T. A. Johansen, Low-Cost Angle of Arrival-Based Auxiliary Navigation System for UAV Using Signals of Opportunity, IEEE/ION PLANS 2023 Conference, Monterey, CA, 2023
• V. Bosdelekidis, N. Sokolova, T. H. Bryne, T. A. Johansen, Solution Separation-based Integrity monitor for Integrated GNSS/IMU/Camera Navigation: Constraining the Hypothesis Space With Deep Learning, IEEE/ION PLANS 2023 Conference, Monterey, CA, 2023
• O. Hasler, H. Løvås, T. H. Bryne, T. A. Johansen, Direct georeferencing for Hyperspectral Imaging of ocean surface, IEEE Aerospace Conference, 2023
• S. Högnadottir, K. Gryte, R. Hann, Tor A. Johansen, Inner-Loop Control of Fixed-Wing Unmanned Aerial Vehicles in Icing Conditions, AIAA SciTech Conference, National Harbor, MD, 2023
  
  

2022

Journal publications

• D. Lupu, I. Necoara, J. Garrett, T. A. Johansen, Stochastic higher-order independent component analysis for hyperspectral dimensionality reduction, IEEE Trans. Computational Imaging, Vol.8, pp. 1184-1194, 2022; https://doi.org/10.1109/TCI.2022.3230584
• S. V. Rothmund, T. Tengesdal, E. F. Brekke, T. A. Johansen, Intention modelling and inference for autonomous collision avoidance at sea, Ocean Engineering, Volume 266, Part 4, Article 113080, 2022; https://doi.org/10.1016/j.oceaneng.2022.113080
• T. Tengesdal, T. D. Grande, S. Blindheim, T. A. Johansen, Ship Collision Avoidance and Anti Grounding Using Parallelized Cost Evaluation in Probabilistic Scenario-based Model Predictive Control, IEEE Access, Vol. 10, pp. 111650-111664, 2022; https://doi.org/10.1109/ACCESS.2022.3215654
• E. R. Jellum, M. Orlandic, E. F. Brekke, T. A. Johansen, T. H. Bryne, Solving Sparse Assignment Problems on FPGAs, ACM Transactions on Architecture and Code Optimization, Volume 19. Issue 4, Article No. 55, 2022; https://doi.org/10.1145/3546072
• K. Nordvik, T. A. Johansen, On Compensation for Wave-induced Roll in Dynamic Positioning Control, Vol. 106, Journal of Marine Science and Technology, Vol. 27, pages1268–1280, 2022; DOI https://doi.org/10.1007/s00773-022-00906-5
• E. F. Prentice, E. Honoré-Livermore, S. Bakken, M. B. Henriksen, R. Birkeland, M. Hjertenæs, A. Gjersvik, T. A. Johansen, F. A. Agelet, F. Navarro-Medina, Assembly, Integration, and Testing Strategy of a Hyperspectral Imaging CubeSat, HYPSO-1, Remote Sensing, Vol. 14, Article 4584, 2022; https://doi.org/10.3390/rs14184584
• V. Bosdelekidis, T. H. Bryne, N. Sokolova, T. A. Johansen, Navigation Algorithm-Agnostic Integrity Monitoring based on Solution Separation with Constrained Computation Time and Sensor Noise Overbounding, Journal of Intelligent and Robotic Systems, Vol. 106, Article 7, 2022; https://doi.org/10.1007/s10846-022-01692-3
• M. L. Sollie, K. Gryte, T. H. Bryne, T. A. Johansen, Outdoor Navigation Using Bluetooth Angle-of-Arrival Measurements, IEEE Access, Vol. 10, pp. 88012-88033, 2022; https://doi.org/10.1109/ACCESS.2022.3199772
• T. Tengesdal, T. A. Johansen, E. F. Brekke, Ship Collision Avoidance Utilizing The Cross-Entropy Method For Collision Risk Assessment, IEEE Trans. Intelligent Transportation Systems, Vol. 23, pp. 11148-11161, 2022 https://doi.org/10.1109/TITS.2021.3101007
• A. Dallolio, H. Øveraas, J. A. Alfredsen, T. I. Fossen, T. A. Johansen, Design and Validation of a Course Control System for a Wave-Propelled Unmanned Surface Vehicle, Field Robotics, Vol. 2, pp. 748-773, 2022; https://doi.org/10.55417/fr.2022025
• A. Dallolio, H. Øveraas, T. A. Johansen, Gain-Scheduled Steering Control for a Wave-Propelled Unmanned Surface Vehicle, Ocean Engineering, Volume 257, paper 111618, 2022
• M. Akdağ, P. Solnør, T. A. Johansen, Collaborative Collision Avoidance for Maritime Autonomous Surface Ships: a Review, Ocean Engineering, Volume 250, Paper 110920, 2022
• M. B. Henriksen, E. F. Prentice, C. M. van Hazendonk, F. Sigernes, T. A. Johansen, A do-it-yourself VIS/NIR pushbroom hyperspectral imager with C-mount optics, Optics Continuum, Vol. 1, pp. 427-441, 2022; https://doi.org/10.1364/OPTCON.450693
• J. Du, J. Chen, J. Li, T. A. Johansen, Multiple Model Predictive Control for nonlinear systems based on Self-balanced Multi-model Decomposition, Industrial & Engineering Chemistry Research, Vol. 61, pp. 487-501, 2022; https://doi.org/10.1021/acs.iecr.1c02426
• M. E. Grøtte, R. Birkeland, E. Honoré-Livermore, S. Bakken, J. L. Garrett, E. F. Prentice, F. Sigernes, M. Orlandic, J. T. Gravdahl, T. A. Johansen, Ocean Color Hyperspectral Remote Sensing with High Resolution and Low Latency - the HYPSO-1 CubeSat Mission, IEEE Trans. Geoscience and Remote Sensing, Vol. 60, pp. 1-19, 2022; https://doi.org/10.1109/TGRS.2021.3080175

 

Conference publications

• V. Bosdelekidis, T. A. Johansen, N. Sokolova, DNN-based anomaly prediction for the uncertainty in visual SLAM, 17th International Conference on Control, Automation, Robotics and Vision (ICARCV), Singapore, 2022
• K. A. Toker, N. Sokolova, T. A. Johansen, Implementation and Test of a Low Cost GBAS Subset Airborne Receiver Experimental Platform for UAVs, 8th International Colloquium on Scientific and Fundamental Aspects of GNSS, Sofia, Bulgaria, 2022
• M. B. Henriksen, J. L. Garrett, T. A. Johansen, F. Sigernes, Comparing pre- and post-launch images from the HYPSO-1 cubesat hyperspectral imager, 73rd International Astronautical Congress (IAC), Paris, 2022
• A. Zolich, A. Faltynkova, G. Johnsen, T. A. Johansen, Portable Catamaran Drone - an uncrewed sampling vehicle for micro-plastics and aquaculture research, IEEE-MTS OCEANS, Hampton Roads, 2022
• A. Oudijk, O. Hasler, H. Øveraas, S. Marty, D. Williamson, T. Svendsen, S. Berg, R. Birkeland, D. Halvorsen, S. Bakken, M. Henriksen, M. Alver, G. Johnsen, T. A. Johansen, A. Stahl, P. Kvaløy, A. Dallolio, S. Majaneva, G. Fragoso, J. Garrett, Campaign for hyperspectral data validation in North Atlantic coastal waters, 12th Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing (WHISPERS), Rome, 2022
• J. Garrett, N. Singh, T. A. Johansen, I. Necoara, Accelerating support vector machines for remote platforms by increasing sparsity, 12th Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing (WHISPERS), Rome, 2022
• D. Langer, A. Sørensen, T. A. Johansen, Interactive hyperspectral data inspection during field operations, 12th Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing (WHISPERS), Rome, 2022
• M. B. Henriksen, F. Sigernes, T. A. Johansen, A closer look at a spectrographic wavelength calibration, 12th Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing (WHISPERS), Rome, 2022
• S. Bakken, A. Danielsen, K. Døsvik, J. Garrett, M. Orlandic, D. Langer, T, A. Johansen, A modular hyperspectral image processing pipeline for cubesats.12th Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing (WHISPERS), Rome, 2022
• Y. Ge, A. J. H. Olaisen, J. Eidsvik, P. Jain, T. A. Johansen, Long-Horizon Informative Path Planning with Obstacles and Time Constraints, 14th IFAC Conference on Control Applications in Marine Systems, Robotics, and Vehicles, Copenhagen, 2022
• S. Blindheim, T. A. Johansen, Particle Swarm Optimization for Dynamic Risk-Aware Path Following for Autonomous Ships, 14th IFAC Conference on Control Applications in Marine Systems, Robotics, and Vehicles, Copenhagen, 2022
• I. B. Hagen, D. K. M. Kufoalor, T. A. Johansen, E. F. Brekke, Scenario-Based Model Predictive Control with Different Numbers of Decision Steps for COLREGS Compliant Ship Collision Avoidance, 14th IFAC Conference on Control Applications in Marine Systems, Robotics, and Vehicles, Copenhagen, 2022
• H. H. Helgesen, K. S. Kristiansen, B. Vik, T. A. Johansen, Detection of Contact with Quay for Ships using Motion Sensors and Machine Learning, 14th IFAC Conference on Control Applications in Marine Systems, Robotics, and Vehicles, Copenhagen, 2022
• M. Akdag, T. I. Fossen, T. A. Johansen, Collaborative Collision Avoidance for Autonomous Ships Using Informed Scenario-Based Model Predictive Control, 14th IFAC Conference on Control Applications in Marine Systems, Robotics, and Vehicles, Copenhagen, 2022
• T. D. Ho, E. I. Grøtli, T. A. Johansen, Path planning for UAV harvesting information from dynamical wireless sensor nodes at sea, IEEE 9th International Conference on Communications and Electronics, Nha Trang City, Vietnam, 2022
• E. R. Jellum, T. H. Bryne, T. A. Johansen, M. Orlandic, The Syncline Model - Analyzing the Impact of Time Synchronization in Sensor Fusion, 6th IEEE Conference on Control Technology and Applications, 2022
• D. P. Reinhardt, M. D. Pedersen, K. Gryte, T. A. Johansen, A Symmetry Calibration Procedure for Sensor-to-Airframe Misalignments in Wind Tunnel Data, 6th IEEE Conference on Control Technology and Applications, 2022
• J. A. Justo, D. Lupu, M. Orlandic, I. Necoara, T. A. Johansen, A Comparative Study of Compressive Sensing Algorithms for Hyperspectral Imaging Reconstruction, IEEE 14th Image, Video, and Multidimensional Signal Processing Workshop (IVMSP), Nafplio, Greece
• A. Winter, N. Sokolova, A. Morrison, T. A. Johansen, GNSS-denied Navigation Using Direction of Arrival From Low-Cost Software Defined Radios and Signals of Opportunity, 9^th European Conf. Aeronautics and Space Sciences (EUCASS), 2022
• A. Zolich, D. Palma, R. Birkeland, K. Cisek, T. A. Johansen, Wi-Fi based Telecommunication Infrastructure Delivered as a Service by UAV for Emergency Response, International Conference on Unmanned Aircraft Systems (ICUAS), Dubrovnik, 2022
• D. Reinhardt, K. Gryte, T. A. Johansen, Modeling of the Skywalker X8 Fixed-Wing UAV: Flight Tests and System Identification, International Conference on Unmanned Aircraft Systems (ICUAS), Dubrovnik, 2022
• E. M. Coates, D. Reinhardt, K. Gryte, T. A. Johansen, Toward Nonlinear Flight Control for Fixed-Wing UAVs: System Architecture, Field Experiments, and Lessons Learned, International Conference on Unmanned Aircraft Systems (ICUAS), Dubrovnik, 2022
• D. Langer, E. F. Prentice, T. A. Johansen, A. J. Sørensen, Validation of hyperspectral camera operations with an experimental aircraft, The International Geoscience and Remote Sensing Symposium (IGARSS), Kuala Lumpur, 2022
• D. Thiagarajah, H. H. Helgesen, Ø. K. Kjerstad, T. A. Johansen, Localization for Ships during Automated Docking using a Monocular Camera, European Control Conference (ECC), London, 2022
• M. Cheung, R. Hann, T. A. Johansen, UAV Icing: A Unified Icing Severity Index Derived from Performance Degradation, AIAA Aviation Forum, 2022
• B. Løw-Hansen, R. Hann, T. A. Johansen, UAV icing: Ice shedding detection method for an electrothermal de-icing system, AIAA Aviation Forum, 2022
• N. C. Müller, R. Hann, T. A. Johansen, UAV Icing: A Performance Model for a UAV Propeller in Icing Conditions, AIAA Aviation Forum, 2022
• E. Brekke, E. Eide, B.-O. H. Eriksen, E. F. Wilthil, M. Breivik, E. Skjellaug, Ø. K. Helgesen, A. Lekkas, A. B. Martinsen, E. H. Thyri, T. Torben, E. Veitch, O. A. Alsos, T. A. Johansen, milliAmpere: An Autonomous Ferry Prototype, Proceedings of MTEC2022 and ICMASS2022, 2022, Singapore
• A. Dallolio, T. K. Bergh, P. R. De La Torre, H. Øveraas, T. A. Johansen, ENC-based Anti-Grounding and Anti-Collision System for a Wave-Propelled USV, IEEE/MTS OCEANS Conference, India, 2022
• H. Øveraas, A. Heggernes, A. Dallolio, T. H. Bryne, T. A. Johansen, Predicting the Speed of a Wave-Propelled Autonomous Surface Vehicle Using Metocean Forecasts, IEEE/MTS OCEANS Conference, India, 2022
• S. Bakken, R. Birkeland, J. L. Garrett, P. A. R. Marton, M. Orlandic, E. Honore-Livermore, D. D. Langer, C. Haskins, T. A. Johansen, Testing of Software-Intensive Hyperspectral Imaging Payload for the HYPSO-1 CubeSat, IEEE/SICE International Symposium on System Integration (SII), 2022
• S. Bakken, E. Honore-Livermore, R. Birkeland, M Orlandic, E. F. Prentice, J. L. Garrett, D. D. Langer, C. Haskins, T. A. Johansen, Software Development and Integration of a Hyperspectral Imaging Payload for HYPSO-1, IEEE/SICE International Symposium on System Integration (SII), 2022
• E. F. Prentice, M. B. Henriksen, T. A. Johansen, F. Navarro Medina, A. Gómez San Juan, Characterizing Spectral Response in Thermal Environments, the HYPSO-1 Hyperspectral Imager, IEEE Aerospace Conference, 2022
• R. Birkeland, G. Quintana-Diaz, E. Honore-Livermore, T. Ekman, F. Aguado Agelet, T. A. Johansen, Development of a multi-purpose SDR payload for the HYPSO-2 Satellite, IEEE Aerospace Conference, 2022
• M. B. Henriksen, E. F. Prentice, F. Sigernes, T. A. Johansen, Pre-Launch Calibration of the HYPSO-1 Cubesat Hyperspectral Payload, IEEE Aerospace Conference, 2022
• R. Kleiven, K. Gryte, T. A. Johansen, Robust and Gain Scheduled Flight Control of Fixed-Wing UAVs in Wind and Icing Conditions, IEEE Aerospace Conference, 2022

 

2021

Journal publications

• S. Blindheim, T. A. Johansen, Electronic Navigational Charts for Visualization, Simulation, and Autonomous Ship Control, IEEE Access, Vol. 10, pp. 3716 – 3737, 2021; DOI: 10.1109/ACCESS.2021.3139767
• K. Gryte, M. Sollie, T. A. Johansen, Control System Architecture for Automatic Recovery of Fixed-Wing Unmanned Aerial Vehicles in a Moving Arrest System, Journal of Intelligent and Robotic Systems, Vol. 103, Article 73, 2021; https://doi.org/10.1007/s10846-021-01521-z
• B. Raeissi, M. Bashir, J. L. Garrett, M. Orlandic, T. A. Johansen, T. Skramstad, Detection of different chemical binders in coatings using commercial hyperspectral imaging, J. Coatings Technology and Research, 2021; https://doi.org/10.1007/s11998-021-00544-3
• B. A. Kristiansen, J. T. Gravdahl, T. A. Johansen, Energy Optimal Attitude Control for a Solar-Powered Spacecraft, European Journal of Control, Vol. 62, pp. 192-197, 2021; https://doi.org/10.1016/j.ejcon.2021.06.021
• A. S Danielsen, T. A. Johansen, J. L Garrett, Self-Organizing Maps for Clustering Hyperspectral Images On-board a Cubesat, Remote Sensing, Vol.13, No. 20, paper 4174, 2021; https://doi.org/10.3390/rs13204174
• H. H. Helgesen, E. Wilthil, T. H. Bryne, T. A. Johansen, Camera-Based Tracking of Floating Objects using Fixed-wing UAVs, J. Intelligent Robotic Systems, Vol. 102, article 80, 2021; DOI https://doi.org/10.1007/s10846-021-01432-z
• J. Kim, J. Guivant, M. Sollie, T. H. Bryne, T. A. Johansen, Compressed pseudo-SLAM: Pseudorange-integrated compressed simultaneous localisation and mapping for unmanned aerial vehicle navigation. J. Navigation, Vol. 74, pp. 1091-1103, 2021; https://doi.org/10.1017/S037346332100031X  
• R. Ringbäck, J. Wei, E. S. Erstorp, J. Kuttenkeuler, T. A. Johansen, K. H. Johansson, Multi-agent formation tracking for autonomous surface vehicles, IEEE Transactions on Control Systems Technology, Vol. 29, pp. 2287-2298, 2021 ; DOI 10.1109/TCST.2020.3035476
• A. Dallolio, G. Quintana-Diaz, E. Honoré-Livermore, J. Garrett, R. Birkeland, T. A. Johansen, A Satellite-USV System for Persistent Observation of Mesoscale Oceanographic Phenomena, Remote Sensing, Vol. 13, 3229, 2021; https://doi.org/10.3390/rs13163229
• E. Bjørne, E. F. Brekke, T. H. Bryne, T. A. Johansen, Semiglobally Asymptotically Stable Nonlinear Observer for Camera Aided Navigation, IEEE Transactions on Control Systems Technology, Vol. 29, pp. 2279 – 2286, 2021; DOI: 10.1109/TCST.2020.3029195
• R. Hann, T. A. Johansen, UAV Icing: The Influence of Airspeed and Chord Length on Performance Degradation, Aircraft Engineering and Aerospace Technology, Vol. 93, pp. 832-841, 2021. https://doi.org/10.1108/AEAT-06-2020-0127
• K. Gryte, T. H. Bryne, T. A. Johansen, Unmanned Aircraft Flight Control Aided by Phased-Array Radio Navigation, J. Field Robotics, Vo. 38, pp. 532-551, 2021; https://doi.org/10.1002/rob.22002
• O. Landstad, H. Halvorsen, H. Øveraas, V, Smines, T. A. Johansen, Dynamic positioning of ROV in the wave zone during launch and recovery from a small surface vessel, Ocean Engineering, Vol. 235,  paper 109382, 2021; https://doi.org/10.1016/j.oceaneng.2021.109382
• R. Hann, A. Enache, M. C. Nielsen, B. N. Stovner, J. van Beeck, T. A. Johansen, K. T. Borup, Experimental Heat Loads for Electrothermal Anti-Icing and De-Icing on UAVs, Aerospace, Vol. 8, No. 3, Paper 83, 2021; https://doi.org/10.3390/aerospace8030083
• F. S. Leira, H. H. Helgesen, T. A. Johansen, T. I. Fossen, Object Detection, Recognition and Tracking from UAVs using a Thermal Camera, J. Field Robotics, Vol. 38, pp. 242-267, 2021; https://doi.org/10.1002/rob.21985
• M. Bornebusch, T. A. Johansen, Autonomous recovery of a Fixed-wing UAV Using a Line Suspended Between Two Multirotor UAVs, IEEE Trans. Aerospace and Electronic Systems, vol. 57, pp. 90-104, 2021; https://doi.org/10.1109/TAES.2020.3009509
• R. Rogne, T. H. Bryne, T. Fossen, T. A Johansen, On the Usage of Low-Cost MEMS Sensors, Strapdown Inertial Navigation and Nonlinear Estimation Techniques in Dynamic Positioning, IEEE J. Oceanic Engineering, Vol. 46, pp. 24-39, 2021; DOI: https://doi.org/10.1109/JOE.2020.2967094
• R. Fiskin, O. Atik, H. Kisi, E. Nasibov, T. A. Johansen, Fuzzy domain and meta-heuristic algorithm-based collision avoidance control for ships: Experimental validation in virtual and real environment, Ocean Engineering, Vol. 220, paper 108502, 2021; https://doi.org/10.1016/j.oceaneng.2020.108502
• S. H. Mathisen, K. Gryte, S. Gros, T. A. Johansen, Precision Deep-Stall Landing of Fixed-Wing UAVs using Nonlinear Model Predictive Control, J. Intelligent & Robotic Systems, Vol. 101, Article 24, 2021; https://doi.org/10.1007/s10846-020-01264-3

Conference publications

• E. Bøhn, S. Moe, T. A. Johansen, On the Effects of Properties of the Minibatch in Reinforcement Learning, 4th International Conference on Intelligent Technologies and Applications (INTAP), Grimstad, 2021
• A. Zolich, T. A. Johansen, M. Elkolali, A. Al-Tawil, A. Alocer, Unmanned Aerial System for deployment and recovery of research equipment at sea, 1st AIRPHARO Workshop on Aerial Robotic Systems Physically Interacting with the Environment, Biograd na Moru, Croatia, 2021
• A. Dallolio, J. A. Alfredsen, T. I. Fossen, T. A. Johansen, Experimental Validation of a Nonlinear Wave Encounter Frequency Estimator Onboard a Wave-Propelled USV, IFAC Conference on Control Applications in Marine Systems, Robotics, and Vehicles, 2021
• E. Bøhn, S. Gros, S. Moe, T. A. Johansen, Optimization of the Model Predictive Control Update Interval Using Reinforcement Learning, Third IFAC Conference on Modelling, Identification and Control of Nonlinear Systems (MICNON), 2021
• E. Bøhn, S. Gros, S. Moe, T. A. Johansen, Reinforcement Learning of the Prediction Horizon in Model Predictive Control, 7th IFAC Conference on Nonlinear Model Predictive Control (NMPC), 2021.
• D. P. Reinhardt, T. A. Johansen, Control of Fixed-Wing UAV Attitude and Speed based on Embedded Nonlinear Model Predictive Control, 7th IFAC Conference on Nonlinear Model Predictive Control (NMPC), 2021
• O. M. Haaland, A. W. Wenz, K. Gryte, R. Hann, T. A. Johansen, Detection and isolation of propeller icing and electric propulsion system faults in fixed-wing UAVs, International Conference on Unmanned Aircraft Systems (ICUAS), Athens, 2021
• E. M. Coates, J. B. Griffiths, T. A. Johansen, Robust Reduced-Attitude Control of Fixed-Wing UAVs using a Generalized Multivariable Super-Twisting Algorithm, International Conference on Unmanned Aircraft Systems (ICUAS), Athens, 2021
• D. Reinhardt, T. A. Johansen, Nonlinear Model Predictive Control combined with Geometric Attitude and Speed Control for Fixed-Wing UAVs, International Conference on Unmanned Aircraft Systems (ICUAS), Athens, 2021
• M. L. Sollie, T. A. Johansen, Planning approach trajectories to enable late aborts for fixed-wing UAV recovery on ships, International Conference on Unmanned Aircraft Systems (ICUAS), Athens, 2021
• O. T. Arnegaard, F. S. Leira, H. H. Helgesen, S. Kemna, T. A. Johansen, Detection of objects on the ocean surface from a UAV with visual and thermal cameras: A machine learning approach, International Conference on Unmanned Aircraft Systems (ICUAS), Athens, 2021
• M. Okuhara, T. H. Bryne, K. Gryte, T. A. Johansen, Phased Array Radio Navigation System on UAVs: GNSS-based Calibration in the Field, International Conference on Unmanned Aircraft Systems (ICUAS), Athens, 2021
• E. Honoré-Livermore, A. Dallolio, R. Birkeland, D. D. Langer, C. Haskins, T. A. Johansen, MBSE modeling of a SoS with a small satellite and autonomous surface vessels for persistent coastal monitoring, 16th Annual System of Systems Engineering Conference, 2021
• A. Oudijk, F. Sigernes, H. Mulders, S. Bakken, T. A. Johansen, Quality assessment of standard video compression techniques applied to hyperspectral data cubes, 11th Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing (WHISPERS), 2021
• S. Bakken, G. Johnsen, T. A. Johansen, Analysis and model development of direct hyperspectral Chlorophyll-a estimation for remote sensing satellites, 11th Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing (WHISPERS), 2021
• O. M. Borge, S. Bakken, T. A. Johansen, Atmospheric correction of hyperspectral data over coastal waters based on machine learning models, 11th Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing (WHISPERS), 2021
• J. Garrett, S. Bakken, E. Prentice, D. Langer, F. Leira, E. Honoré-Livermore, R. Birkeland, M. Grøtte, T. A. Johansen, M. Orlandić, Hyperspectral Image Processing Pipelines on Multiple Platforms for Coordinated Oceanographic Observation, 11th Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing (WHISPERS), 2021
• J. Garrett, M. Bashir, T. A. Johansen, M. Orlandić, B. Raeissi, Detecting Pinholes in Coatings with Hyperspectral Imaging, 11th Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing (WHISPERS), 2021
• B. A. Kristiansen, J. T. Gravdahl, T. A. Johansen, Energy optimal attitude control for a solar-powered spacecraft, European Control Conference (ECC), 2021
• E. I. Grøtli, J. Haugen, T. A. Johansen, L. S. Imsland, Adaptive sampling for UAV sensor network in oil spill management, American Control Conference (ACC), 2021
• E. Prentice, M. Grøtte, F. Sigernes, T. A. Johansen, Design of hyperspectral imager using COTS optics for small satellite applications, Int. Conf. Space Optics (ICSO), 2021
• D. T. Ho, E. I. Grøtli, T. A. Johansen, PSO and Kalman Filter-Based Node Motion Prediction for Data Collection from Ocean Wireless Sensors Network with UAV, IEEE ICCE, 2021

 

2020

Journal publications

• H. S. Halvorsen, H. Øveraas, O. Landstad, V. Smines, T. I. Fossen, T. A. Johansen, Wave motion compensation in dynamic positioning of small autonomous vessels, Journal of Marine Science and Technology, Vol. 26, pages 693–712, 2020; https://doi.org/10.1007/s00773-020-00765-y
• D. Boskovic, M. Orlandic, T. A. Johansen, A Reconfigurable Multi-mode Implementation of Hyperspectral Target Detection Algorithms, Microprocessors and Microsystems, Volume 78, paper 103258, 2020; https://doi.org/10.1016/j.micpro.2020.103258
• K. T. Borup, B. B. Stovner, T. I. Fossen, T. A. Johansen, Kalman Filters for Air Data System Bias Correction for a Fixed-Wing UAV, IEEE Transactions on Control Systems Technology, Vol. 28, pp. 2164-2176, 2020; https://doi.org/10.1109/TCST.2019.2931672
• M. Haring, T. A. Johansen, On the stability bounds of Kalman filters for linear deterministic discrete-time systems, IEEE Trans. Automatic Control, Vol. 65, pp. 4434-4439, 2020; https://doi.org/10.1109/TAC.2020.2966150
• A. R. Hovenburg, F. A. de Alcantara Andrade, R. Hann, C. D. Rodin, T. A. Johansen, R. Storvold, Long range path planning using an aircraft performance model for battery powered sUAS equipped with icing protection system, IEEE J. Miniaturization for air and space systems, Vol. 1, pp. 76 – 89, 2020; https://doi.org/10.1109/JMASS.2020.3003833
• N. T. Hung, N. Crasta, D. M. Salinas, A. M. Pascoal, T. A. Johansen, Range-based Target Localization and Pursuit with Autonomous Vehicles: An Approach using Posterior CRLB and Model Predictive Control, Robotics and Autonomous Systems, Volume 132, Paper 103608, 2020; https://doi.org/10.1016/j.robot.2020.103608
• N. T. Hung, A. M. Pascoal, T. A. Johansen, Cooperative Path Following of Constrained Autonomous Vehicles with Model Predictive Control and Event Triggered Communications, International Journal of Robust and Nonlinear Control, Vol. 30, pp. 2644-2670, 2020; https://doi.org/10.1002/rnc.4896
• J. Fortuna, H. Martens, T. A. Johansen, Multivariate Image Fusion: A Pipeline For Hyperspectral Data Enhancement, Chemometrics and Intelligent Laboratory Systems, Volume 205, Paper 104097, 2020; https://doi.org/10.1016/j.chemolab.2020.104097
• J. Olofsson, G Hendeby, T. R. Lauknes, T. A. Johansen, Multi-Agent Informed Path-Planning Using the Probability Hypothesis Density, Autonomous Robots, Vol. 44, pp. 913–925, 2020; https://doi.org/10.1007/s10514-020-09904-1
• S. G. Mathisen, F. S. Leira, H. H. Helgesen, K. Gryte, T. A. Johansen, Autonomous Ballistic Airdrop of Objects from a Small Fixed-Wing Unmanned Aerial Vehicle, Autonomous Robots, vol. 44, pp. 859-875, 2020; https://doi.org/10.1007/s10514-020-09902-3
• A Nikoofard, A. Molaei, T. A. Johansen, Reservoir Characterization in Under-balanced Drilling with Nonlinear Moving Horizon Estimation with Manual and Automatic Control Conditions, Journal of Petroleum Science and Engineering, Volume 192, 107248, 2020; https://doi.org/10.1016/j.petrol.2020.107248
• E. S. Bjørne, E. F. Brekke, T. H. Bryne, J. H. Delaune, T. A. Johansen, Globally Stable Velocity Estimation Using Normalized Velocity Measurement, Int. J. Robotics Research, Vol. 39, pp. 143-157, 2020; https://doi.org/10.1177/0278364919887436
• D. K. M. Kufoalor, T. A. Johansen, E. F. Brekke, A. Hepsø, K. Trnka, Autonomous Maritime Collision Avoidance: Field verification of Autonomous Surface Vehicle Behavior in Challenging Scenarios, J. Field Robotics, Vol. 37, Issue 3, pp. 387-403, 2020; https://doi.org/10.1002/rob.21919
• K. Klausen, C. Meissen, T. I. Fossen, M. Arcak, T. A. Johansen, Cooperative Control for Multirotors Transporting an Unknown Suspended Load under Environmental Disturbances, IEEE Transactions on Control Systems Technology, Vol. 28, pp. 653-660, 2020; https://doi.org/10.1109/TCST.2018.2876518
• K. T. Borup, T. I. Fossen, T. A. Johansen, A Machine Learning Approach for Estimating Air Data Parameters, IEEE Transactions on Aerospace and Electronic Systems, vol. 56, pp. 2157-2173, 2020; https://doi.org/10.1109/TAES.2019.2945383
• A. W. Wenz, T. A. Johansen, Moving Horizon Estimation of Air Data Parameters for UAVs, IEEE Transactions on Aerospace and Electronic Systems, vol. 56, pp. 2101-2121,  2020; https://doi.org/10.1109/TAES.2019.2946677

Book chapters /reports

·        T. A. Johansen, T. I. Fossen, Guidance, Navigation and Control of Fixed-Wing Unmanned Aerial Vehicles, in Encyclopedia of Robotics, A. Ollero (Ed), Springer, 2020

·        A. Cristofaro, D. Rotondo, T. A. Johansen, An unknown input observer-based framework for fault and icing detection and accommodation in overactuated unmanned aerial vehicles, in “Fault Diagnosis and Fault-Tolerant Control of Robotic and Autonomous Systems”, IET, 2020

·        R. Hann, T. A. Johansen, Unsettled Topics in Unmanned Aerial Vehicle Icing, Society of Automotive Engineers (SAE) Edge Report, 2020

Conference publications

• J. Kim, Y. Bhambhani, H. Byun, T. A. Johansen, Cascaded Nonlinear Attitude Observer and Simultaneous Localisation and Mapping, Australian Conf. Robotics and Automation, 2020
• J. Kim, H. Byun, J. Guivant, T. A. Johansen, Compressed Pseudo-SLAM: Pseudorange Integrated Generalised Compressed SLAM, Australian Conf. Robotics and Automation, 2020
• T. Tengesdal, T. A. Johansen, E. Brekke, Risk-based Autonomous Maritime Collision Avoidance Considering Obstacle Intentions, FUSION, 2020
• J. F. G. Fonseca, J. Wei, T. A. Johansen, K. H. Johansson, Cooperative circumnavigation for a mobile target using adaptive estimation, CONTROLO, Portugal, 2020
• E. F. L. Narum, R. Hann, T. A. Johansen, Optimal Mission Planning for Fixed-Wing UAVs with Electro-Thermal Icing Protection and Hybrid-Electric Power Systems, Int. Conf. Unmanned Aircraft Systems, Athens, 2020
• A. W. Wenz, T. A. Johansen, Real-Time Moving Horizon Estimation of Air Data Parameters and Wind Velocities for fixed-wing UAVs, Int. Conf. Unmanned Aircraft Systems, Athens, 2020
• D. P. Reinhardt, E. M. Coates, T. A. Johansen, Hybrid Control of Fixed-Wing UAVs for Large-Angle Attitude Maneuvers on the Two-Sphere, 21rst IFAC World Congress, Berlin, 2020
• M. E. Grøtte, J. T. Gravdahl, T. A. Johansen, J. A. Larsen, E. Martinez Vidal, E. Surma, Spacecraft Attitude Stabilization and Slew Maneuver Feedback Controllers using Reaction Wheels, 21st IFAC World Congress, Berlin, 2020
• S. Blindheim, S. Gros, T. A. Johansen, Risk-Based Model Predictive Control for Autonomous Ship Emergency Management, 21st IFAC World Congress, Berlin, 2020
• T. Tengesdal, E. F. Brekke, T, A. Johansen, On Collision Risk Assessment for Autonomous Ships Using Scenario-Based MPC, 21st IFAC World Congress, Berlin, 2020
• E. Bøhn, S. Moe, T. A. Johansen, Accelerating Reinforcement Learning with Suboptimal Guidance, 21st IFAC World Congress, Berlin, 2020
• D. G. Sbarbaro, T. A. Johansen, On-line calibration of spectroscopic sensors based on nonlinear observers, 21st IFAC World Congress, Berlin, 2020
• D. Rotondo, D. Efimov, A. Cristofaro, T. A. Johansen, Estimation in uncertain switched systems using a bank of interval observers: local vs glocal approach, 21rst IFAC World Congress, Berlin, 2020
• S. Bakken, J. Wei, Z. Lee, G. Johnsen, T. A. Johansen, J. Montoya, A. Subramaniam, Hyperspectral Remote Sensing of the Amazon River Plume, Ocean Sciences Meeting, accepted, 2020
• B. B. Stovner, T. A. Johansen, Globally exponentially stable wind estimation for small fixed-wing UAVs using standard sensors, AIAA SciTech Forum, Orlando, FL, 2020

 

2019

Journal publications

• C. D. Rodin, F. A. A. Andrade, A. R. Hovenburg, T. A. Johansen, A Survey of Design Considerations of Optical Imaging Stabilization Systems for Small Unmanned Aerial Systems, Sensors, Vol. 19, 4800, 2019; DOI https://doi.org/10.3390/s19214800
• F. A. A. Andrade, A. R. Hovenburg, L. N. de Lima, C. D. Rodin, T. A. Johansen, R. Storvold, C. A. M. Correia, D. B. Haddad, Autonomous Unmanned Aerial Vehicles in Search and Rescue missions using real-time cooperative Model Predictive Control, Sensors, Vol. 19, 4067, 2019; DOI https://doi.org/10.3390/s19194067
• M. Merz, T. A. Johansen, Robust Precision Control of an Endbody being Towed by a Circling UAV, Journal of Guidance, Control, and Dynamics, Vol.42, pp. 2677-2686, 2019; https://doi.org/10.2514/1.G004199
• D. Rotondo, A. Cristofaro, T. A. Johansen, F. Nejjari, V. Puig, Robust fault and icing diagnosis in unmanned aerial vehicles using LPV interval observers, International Journal of Robust and Nonlinear Control, Vol. 29, pp. 5456-5480, 2019; https://doi.org/10.1002/rnc.4381
• M. Naderi, T. A. Johansen, A. K. Sedigh, A fault tolerant control scheme using the feasible constrained control allocation strategy, International Journal of Automation and Computing, Vol. 16, pp. 628-643, 2019
• E. Skong, M. Molinas, T. A. Johansen, Distributed Control Architecture for Real-time Model Predictive Control for System-level Harmonic Mitigation in Power Systems, ISA Transactions, Vol. 93, pp- 231-243, 2019; https://doi.org/10.1016/j.isatra.2019.01.043
• H. H. Helgesen, F. S. Leira, T. H. Bryne, S. M. Albrektsen, T. A. Johansen, Real-time Georeferencing of Thermal Images using Small Fixed-Wing UAVs in Maritime Environments, ISPRS Journal of Photogrammetry and Remote Sensing, Volume 154, August, 84-97, 2019; https://doi.org/10.1016/j.isprsjprs.2019.05.009
• M. Naderi, T. A. Johansen, A. K. Sedigh, Guaranteed Feasible Control Allocation using Model Predictive Control, Control Theory and Technology, Vol. 17, pp 252–264, 2019; https://doi.org/10.1007/s11768-019-7231-9
• M. Abdollahpouri, R. Quirynen, M. Haring, T. A. Johansen, G. Takacs, M. Diehl, B. Rohal-Ilkiv, A Homotopy-based Moving Horizon Estimation, Int. J. Control, Vol. 92, pp. 1672-1681, 2019; https://doi.org/10.1080/00207179.2017.1406150 
• A. Zolich, D. Palma, K. Kansanen, K. Fjørtoft, J. Sousa, K. H. Johansson,  Y. Jiang, H. Dong, T. A. Johansen, Survey on Communication and Networks for Autonomous Marine Systems, Journal of Intelligent & Robotic Systems, Vol. 95, pp 789–813, 2019; DOI https://doi.org/10.1007/s10846-018-0833-5
• A. S. Ferreira, M. Costa, F. Py, J. Pinto, M. A. Silva, A. N. Smith, T. A. Johansen,  J. Sousa, K. Rajan, Advancing Multi-Vehicle Deployments in Oceanographic Field Experiments, Autonomous Robots, Vol. 43, pp. 1555–1574, 2019; DOI https://doi.org/10.1007/s10514-018-9810-x
• B. J. T. Binder, L. S. Imsland, T. A. Johansen, Improved Predictions from Measured Disturbances in Linear Model Predictive Control, J. Process Control, Volume 75, March 2019, Pages 86-106, 2019; https://doi.org/10.1016/j.jprocont.2019.01.007
• M. Orlandić, J. Fjeldtvedt, T. A. Johansen, A Parallel FPGA Implementation of the CCSDS-123 Compression Algorithm, Remote Sensing, Vol. 11, 673, 2019
• J. M. Hansen, N. Sokolova, T. I. Fossen, T. A. Johansen, Nonlinear Observer for Tightly Coupled Integrated Inertial Navigation Aided by RTK-GNSS Measurements, IEEE Transactions on Control Systems Technology, Vol. 27, pp. 1084 – 1099, 2019; DOI: 10.1109/TCST.2017.2785840    
• M. Haring, E. Skjong, M. Molinas, T. A. Johansen, Extremum-seeking control for harmonic mitigation in electrical grids of marine vessels, IEEE Transactions on Industrial Electronics, Vol. 66, pp. 500-508, 2019; DOI: 10.1109/TIE.2018.2826472
• M. Abdollahpouri, G. Batista, G. Takacs, T. A. Johansen, B. Rohal-Ilkiv, Adaptive Vibration Attenuation with Globally Convergent Parameter Estimation, Mechanical Systems and Signal Processing, Vol. 114, pp. 512–527, 2019; DOI https://doi.org/10.1016/j.ymssp.2018.05.034

 

Conference publications

• A. Dallolio, B. Agdal, A. Zolich, J. A. Alfredsen, T. A. Johansen, Long-Endurance Green Energy Autonomous Surface Vehicle Control Architecture, IEEE/MTS OCEANS, Seattle, 2019
• E. F. Brekke, E. F. Wilthil, B.-O. H. Eriksen, D. K. M. Kufoalor, K. Helgesen, I. B. Hagen, M. Breivik, T. A. Johansen, The Autosea project: Developing closed-loop target tracking and collision avoidance systems, 2^nd Int. Conf. Maritime Autonomous Surface Ships (ICMASS), Trondheim, 2019
• F. Sigernes, M. B. Henriksen, M. Syrjäsuo and T. A. Johansen, Hyper Spectral Imagers for Drones and micro Satellites, 19th International EISCAT Symposium and 46th Annual European Meeting on Atmospheric Studies by Optical Methods, Oulu, Finland, 2019
• G. E. Berget, J. Eidsvik, M. O. Alver, F. Py, E. I. Grøtli, T. A. Johansen, Adaptive Underwater Robotic Sampling of Dispersal Dynamics in the Coastal Ocean, The International Symposium on Robotics Research, Hanoi, 2019
• M. B. Henriksen, J. L. Garrett, E. F. Prentice, F. Sigernes, A. Stahl, T. A. Johansen, Real-time Corrections for A Low-cost Hyperspectral Instrument, 10^th Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing (WHISPERS), Amsterdam, 2019
• M. Lapadatu, S. Bakken, M. E. Grøtte, M. Alver, T. A. Johansen, Simulation tool for hyper-spectral imaging from a satellite, 10^th Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing (WHISPERS), Amsterdam, 2019
• J. Fonseca, J. Wei, K. H. Johansson, T. A. Johansen, Cooperative decentralised  circumnavigation with application to algal bloom tracking, IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), 2019
• A. Winter, R. Hann, A. Wenz, K. Gryte, T. A. Johansen, Stability of a Flying Wing UAV in Icing Conditions, 8th European Conference for Aeronautics and Space Sciences (EUCASS), Madrid, 2019
• E. Bjørne, T. A. Johansen, E. Brekke, Cascaded Bearing Only SLAM with Uniform Semi-Global Asymptotic Stability, 22^nd Int. Conf. Information Fusion (FUSION), Ottawa, Canada, 2019
• S. Bakken, M. Orlandic, T. A. Johansen, The effect of dimensionality reduction on signature-based target detection for hyperspectral remote sensing, SPIE Optical Engineering + Applications Conference, CubeSats and SmallSats for Remote Sensing III, San Diego, 2019; http://dx.doi.org/10.1117/12.2529141
• A. Dallolio, L. Bertino, L. Chrpa, T. A. Johansen, M. Ludvigsen, K. Orvik, L. H. Smedsrud, J. Sousa, I. B. Utne, P. Johnston, K. Rajan, Long-duration Autonomy for Open Ocean Exploration, RSS 2019 Workshop on Robots in the Wild: Challenges in Deploying Robust Autonomy for Robotic Exploration, Freiburg, 2019
• R. Hann, K. Borup, A. Zolich, K. Sørensen, H. Vestad, M. Steinert, T. A. Johansen, Experimental Investigations of an Icing Protection System for UAVs, International Conference on Icing of Aircraft, Engines, and Structures, Minneapolis, 2019
• M. L. Sollie, T. H. Bryne, T. A. Johansen, Pose Estimation of UAVs Based on INS Aided by Two Independent Low-cost GNSS Receivers, International Conference on Unmanned Aircraft Systems (ICUAS), Atlanta, 2019
• K. Gryte, T. H. Bryne, S. M. Albrektsen, T. A. Johansen, Field Test Results of GNSS-denied Inertial Navigation aided by Phased-array Radio Systems for UAVs, International Conference on Unmanned Aircraft Systems (ICUAS), Atlanta, 2019
• H. H. Helgesen, F. S. Leira, T. A. Johansen,    Colored-Noise Tracking of Floating Objects using UAVs with Thermal Cameras, International Conference on Unmanned Aircraft Systems (ICUAS), Atlanta, 2019
• E. E. Bøhn, E. M. L. Coates, S. Moe, T. A. Johansen, Deep Reinforcement Learning Attitude Control of Fixed Wing UAVs Using Proximal Policy Optimization, International Conference on Unmanned Aircraft Systems (ICUAS), Atlanta, 2019
• S. V. Rothmund, T. A. Johansen, Risk-Based Collision Avoidance in Unknown Environments using Scenario-Based MPC for an Inspection Drone equipped with Range Finding Sensors, International Conference on Unmanned Aircraft Systems (ICUAS), Atlanta, 2019
• E. M. L. Coates, A. W. Wenz, K. Gryte, T. A. Johansen, Propulsion System Modeling for Small Fixed Wing UAVs, International Conference on Unmanned Aircraft Systems (ICUAS), Atlanta, 2019
• D. Reinhardt, T. A. Johansen, Nonlinear Model Predictive Attitude Control for Fixed-Wing Unmanned Aerial Vehicle, International Conference on Unmanned Aircraft Systems (ICUAS), Atlanta, 2019
• D. Bošković, M. Orlandić, S. Bakken and T. A. Johansen, HW/SW Implementation of Hyperspectral Target Detection Algorithm, 8th Mediterranean Conference on Embedded Computing – MECO, Montenegro, 2019
• K. Avagian, M. Orlandić, T. A. Johansen, An FPGA-oriented HW/SW Codesign of Lucy-Richardson Deconvolution Algorithm for Hyperspectral Images, 8th Mediterranean Conference on Embedded Computing – MECO, Montenegro, 2019
• A. W. Wenz, T. A. Johansen, Icing Detection for Small Fixed Wing UAVs using Inflight Aerodynamic Coefficient Estimation, IEEE Aerospace Conference, Big Sky, Paper 2636, 2019
• K. Cisek, E. Brekke, M. Jahangir, T. A. Johansen, Track-to-track data fusion for unmanned traffic management system, IEEE Aerospace Conference, Big Sky, Paper 2614, 2019
• B. Stovner, T. A. Johansen, GNSS-antenna lever arm compensation in aided inertial navigation of UAVs, European Control Conference, Naples, 2019
• D. Rotondo, T. A. Johansen, State observer design for quadratic parameter varying (QPV) systems, European Control Conference, Naples, 2019
• D. K. M. Kufoalor, E. Wilthil, I. B. Hagen, E. Brekke, T. A. Johansen, Autonomous COLREGs-Compliant Decision Making using Maritime Radar Tracking and Model Predictive Control, European Control Conference, Naples, 2019

 

2018

Journal publications

• P. Ahmadi-Moshkenani, S. Olaru,  T. A. Johansen, Combinatorial Approach towards Multi-Parametric Quadratic Programming based on Characterizing Adjacent Critical Regions, IEEE Transactions on Automatic Control, Vol. 63, pp. 3221 - 3231, 2018; DOI https://doi.org/10.1109/TAC.2018.2791479
• J. Fjeldtvedt, M. Orlandic, T. A. Johansen, An Efficient Real-Time FPGA Implementation of the CCSDS-123 Compression Standard for Hyperspectral Images, IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol. 11, pp. 3841-3852, 2018; DOI: 10.1109/JSTARS.2018.2869697
• D. Rotondo, A. Cristofaro, T. A. Johansen, F. Nejjari, V. Puig, Diagnosis of icing and actuator faults in UAVs using LPV unknown input observers, Journal of Intelligent & Robotic Systems, Vol. 91, pp 651–665, 2018; https://doi.org/10.1007/s10846-017-0716-1
• H. H. Helgesen, F. S. Leira, T. I. Fossen, T. A. Johansen, Tracking of Ocean Surface Objects from Unmanned Aerial Vehicles with a Pan/Tilt Unit using a Thermal Camera, Journal of Intelligent & Robotic Systems, Vol. 91, pp 775–793, 2018; https://doi.org/10.1007/s10846-017-0722-3
• D. Rotondo, A. Cristofaro, T. A. Johansen, F. Nejjari, V. Puig, State estimation and decoupling of unknown inputs in uncertain LPV systems using interval observers, Int. J. Control, Vol. 91, pp. 1944-1961, 2018; http://dx.doi.org/10.1080/00207179.2017.1335882
• L. Fusini, T. I. Fossen, T. A. Johansen, Non-linear Observers for GNSS- and Camera-Aided Inertial Navigation of a Fixed-Wing UAV, IEEE Transactions on Control Systems Technology, vol. 26, pp. 1884-1891, 2018; DOI: 10.1109/TCST.2017.2735363
• S. M. Albrektsen, T. A. Johansen, Reconfigurable Sensor Timing and Navigation System for UAVs, Sensors, Vol. 18, 2468, 2018; doi:10.3390/s18082468
• B. N. Stovner, T. A. Johansen, T. I. Fossen, I. Schjølberg, Attitude Estimation by Multiplicative eXogenous Kalman Filter, Automatica, Vol. 95, pp. 347-355, 2018; https://doi.org/10.1016/j.automatica.2018.05.038
• K. Klausen, T. A. Johansen, T. I. Fossen, Autonomous Recovery of a Fixed-Wing UAV Using a Net Suspended by Two Multirotor UAVs, J. Field Robotics, Vol. 35, pp. 717-731, 2018; DOI: https://doi.org/10.1002/rob.21772
• D. Rotondo, T. A. Johansen, Analysis and design of quadratic parameter varying (QPV) control systems with polytopic attractive region, Journal of the Franklin Institute, Vol. 355, pp 3488-3507, 2018; https://doi.org/10.1016/j.jfranklin.2018.01.046
• M. Haring, T. A. Johansen, On the accuracy of gradient estimation in extremum-seeking control using small perturbations, Automatica, Vol. 95, Sept, pp. 23–32, 2018; https://doi.org/10.1016/j.automatica.2018.05.001
• A. Grancharova, T. A. Johansen, S. Olaru, Dual-mode distributed model predictive control of a quadruple-tank system, J. Chemical Technology and Metallurgy, Vol. 53, No. 4, pp. 674-682, 2018
• A. Cristofaro, M. Polycarpou, T. A. Johansen, Fault-tolerant control allocation for overactuated nonlinear systems, Asian J. Control, Vol. 20, pp. 621-634, 2018; DOI: 10.1002/asjc.1619.
• B. N. Stovner, T. A. Johansen, I. Schjølberg, Globally Exponentially Stable Filters for Underwater Position Estimation Using an Array of Hydroacoustic Transducers on the Vehicle and A Single Transponder, Ocean Engineering, vol. 155, pp. 351–360, 2018; DOI: https://doi.org/10.1016/j.oceaneng.2018.02.053
• F. Sigernes, M. Surjäsuo, R. Storvold, J. Fortuna, M. E. Grøtte, T. A. Johansen, Do it yourself hyperspectral imager for handheld to airborne operations, Optics Express, Vol. 26, pp. 6021-6035, 2018; https://doi.org/10.1364/OE.26.006021
• R. H. Rogne, T. I. Bryne, T. I. Fossen, T. A. Johansen, Redundant MEMS-based Inertial Navigation using Nonlinear Observers, ASME Journal of Dynamic Systems, Measurement and Control, Vol. 140, Issue 7, Paper DS-17-1023, 2018; doi:10.1115/1.4038647
• D. Rotondo, A. Cristofaro, T. A. Johansen, Fault tolerant control of uncertain dynamical systems using interval virtual actuators, Int. J. Robust and Nonlinear Control, Vol. 28, pp. 611–624, 2018; DOI: 10.1002/rnc.3888
• A. Nikoofard, G. O. Kaasa, T. A. Johansen, Reservoir characterization in Under-balanced Drilling using Low-Order Lumped Model, Journal of Process Control, Vol. 62, pp. 24-36, 2018; https://doi.org/10.1016/j.jprocont.2017.12.002
• T. H. Bryne, R. H. Rogne, T. A. Johansen, T. I. Fossen, A virtual vertical reference concept for aided inertial navigation at the sea surface, Control Engineering Practice, Vol. 70, pp. 1-14, 2018; https://doi.org/10.1016/j.conengprac.2017.09.009

Conference publications

·        E. Bjørne, J. Delaune, T. A. Johansen, Estimating vector magnitude from its direction and derivative, with application to bearing-only SLAM filter problem, IEEE Conference on Decision and Control (CDC), Miami Beach, 2018

·        O. M. Brokstad, R. Klæboe, E. Sollesnes, B. Vågen, A. Carella, A. Alcocer, T. A. Johansen, A. P. Zolich, Towards the development of Miniature Underwater Gliders with UAV deployment/recovery capabilities, IEEE OES Autonomous Underwater Vehicle Symposium, Porto, 2018

·        D. K. M. Kufoalor, E. Brekke, T. A. Johansen, Proactive Collision Avoidance for ASVs using A Dynamic Reciprocal Velocity Obstacles Method, IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), Madrid, 2018

·        R. P. Jain, A. P. Zolich, E. S. Erstorp, T. A. Johansen, J. A. Alfredsen, A. P. Aguiar, J. Kuttenkeuler, J. Sousa, Localization of an Acoustic Fish-Tag using the Time-of-Arrival Measurements: Preliminary results using eXogenous Kalman Filter, IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), Madrid, 2018

·        J. Fortuna, T. A. Johansen, A lightweight payload for Hyperspectral Remote Sensing using small UAVs, 9^th Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing, Amsterdam, 2018

·        G. E. Berget, T. O. Fossum, T. A. Johansen, K. Rajan, J. Eidsvik, Adaptive Sampling of Ocean Processes Using an AUV with a Gaussian Proxy Model, 11th IFAC Conference on Control Applications in Marine Systems, Robotics, and Vehicles, Opatija, Croatia, 2018

·        A. Grancharova, T. A. Johansen, Distributed Quasi-Nonlinear Model Predictive Control with Contractive Constraint, 6th IFAC Conference on Nonlinear Model Predictive Control, Madison, USA, 2018

·        S. M. Albrektsen, T. H. Bryne, T. A. Johansen, Robust and secure UAV navigation using GNSS, phased-array radio system and inertial sensor fusion, IEEE Conference on Control Technology and Applications, Copenhagen, 2018

·        A. Hasan, M. Skriver, T. A. Johansen, eXogenous Kalman Filter for State-of-Charge Estimation in Lithium-ion Batteries, IEEE Conference on Control Technology and Applications, Copenhagen, 2018

·        C. Dahlin Rodin, L. N. de Lima, F. A. A. Andrade, D. B. Haddad, T. A. Johansen, R. Storvold, Object Classification in Thermal Images using Convolutional Neural Networks for Search and Rescue Missions with Unmanned Aerial Systems, International Joint Conference on Neural Networks (IJCNN), Rio de Janeiro, 2018

·        S. Benders, A. W. Wenz, T. A. Johansen, Adaptive path planning for unmanned aircrafts using inflight wind velocity estimation, International Conference on Unmanned Aircraft Systems, Dallas, 2018

·        K. Gryte, R. Hann, M. Alam, J. Rohác, T. A. Johansen, T. I. Fossen, Aerodynamic modeling of the Skywalker X8 Fixed-Wing Unmanned Aerial Vehicle, International Conference on Unmanned Aircraft Systems, Dallas, 2018

·        A. R. Hovenburg, F. Andrade, C. Dahlin Rodin, T. A. Johansen, R. Storvold, Inclusion of Horizontal Wind Maps in Path Planning Optimization of UAS, International Conference on Unmanned Aircraft Systems, Dallas, 2018

·        A. Hasan, T. A. Johansen, Model-Based Actuator Fault Diagnosis in Multirotor UAVs, International Conference on Unmanned Aircraft Systems, Dallas, 2018

·        C. Dahlin Rodin, T. A. Johansen, Detectability of Objects at the Sea Surface in Visible Light and Thermal Camera Images, MTS/IEEE OCEANS, Kobe, 2018

·        F. A. Andrade, C. Dahlin Rodin, A. Hovenburg, T. A. Johansen, R. Storvold, Path Planning of Multi-UAS Communication Relay by Decentralized MPC, MTS/IEEE OCEANS, Kobe, 2018

·        M. C. Nielsen, T. A. Johansen, M. Blanke, Cooperative Rendezvous and Docking for Underwater Robots using Model Predictive Control and Dual Decomposition, European Control Conference, Limassol, 2018

·        M. Abdollahpouri, M. Haring, T. A. Johansen, G. Takacs, B. Rohal-Ilkiv, Double Moving Horizon Estimation: Linearization by a Nonlinear Transformation, European Control Conference, Limassol, 2018

·        I. B. Hagen, D. K. M. Kufoalor, E. Brekke, T. A. Johansen, MPC-based Collision Avoidance Strategy for Existing Marine Vessel Guidance Systems, IEEE International Conference on Robotics and Automation, Brisbane, 2018

·        C. Dahlin Rodin, A. Stahl, T. A. Johansen, Skyline Based Camera Attitude Estimation Using a Digital Surface Model, 15^th Int.Workshop on Advanced Motion Control, Tokyo, 2018

·        K. Cisek, K. Gryte, T. H. Bryne, T. A. Johansen, Aided Inertial Navigation of Small Unmanned Aerial Vehicles Using an Ultra-Wideband RTLS, IEEE Aerospace Conference, 2018

·        S. M. Albrektsen, T. H. Bryne, T. A. Johansen, Phased Array Radio System Aided Inertial Navigation for Unmanned Aerial Systems, IEEE Aerospace Conference, 2018

2017

Journal publications

• D. Palma, A. Zolich, Y. Jiang, T. A. Johansen, Unmanned Aerial Vehicles as Data Mules: An Experimental Assessment, IEEE Access, Vol. 5, pp. 24716 – 24726, 2017; DOI: 10.1109/ACCESS.2017.2769658
• K. Klausen, T. I. Fossen, T. A. Johansen, Nonlinear Control with Swing Damping of a Multirotor UAV with Suspended Load, Journal of Intelligent & Robotic Systems, vol. 88, pp. 379-394, 2017; DOI 10.1007/s10846-017-0509-6
• A. J. Sørensen, R. Skjetne, T. I. Bø, M. R. Miyazaki, T. A. Johansen, I. B. Utne, E. Pedersen, Towards Safer, Smarter and Greener Ships Using Hybrid Marine Power Plants, IEEE Electrification Magazine, pp. 68-73, Sept, 2017; DOI 10.1109/MELE.2017.2718861
• A. Cristofaro, A. P. Aguiar, T. A. Johansen, Icing Detection and Identification for Unmanned Aerial Vehicles using Adaptive Nested Multiple Models, International Journal of Adaptive Control and Signal Processing, Vol. 31, pp. 1584–1607, 2017; DOI: 10.1002/acs.2787
• A. Nikoofard, U. Aarsnes, G. O. Kaasa, T. A. Johansen, State and Parameter Estimation of a Drift-Flux Model for Under-Balanced Drilling Operations, IEEE Trans. Control Systems Technology, Vol. 25, pp. 2000 – 2009, 2017; DOI 10.1109/TCST.2016.2638683
• S. Vergara, D. Sbarbaro, T. A. Johansen, Accurate position estimation methods based on electrical impedance tomography measurements, Measurement Science and Technology, Vol. 28, 084003, 2017; DOI: 10.1088/1361-6501/aa743f
• J. Du, T. A. Johansen, Control-relevant nonlinearity measure and integrated multi-model control, J. Process Control, vol. 57, pp. 127-139, September, 2017; https://doi.org/10.1016/j.jprocont.2017.07.001
• T. A. Johansen, Toward Dependable Embedded Model Predictive Control, IEEE Systems Journal, vol. 11, pp. 1208-1219, 2017; DOI: 10.1109/JSYST.2014.2368129
• T. I. Bø, T. A. Johansen, Battery Power Smoothing Control in a Marine Electric Power Plant using Nonlinear Model Predictive Control, IEEE Transactions on Control Systems Technology, Vol. 25, pp. 1449-1456, 2017; DOI: 10.1109/TCST.2016.2601301
• T. H. Bryne, J. M. Hansen, R. H. Rogne, N. Sokolova, T. I. Fossen, T. A. Johansen, Nonlinear Observers for Integrated INS/GNSS Navigation - Implementation Aspects, IEEE Control Systems Magazine, Vol. 37, No. 3, pp. 59 - 86, 2017; DOI: 10.1109/MCS.2017.2674458
• M. A. Haring, T. A. Johansen, Asymptotic Stability of Perturbation-Based Extremum-Seeking Control for Nonlinear Plants, IEEE Transactions on Automatic Control, vol. 62, pp. 2302 – 2317, 2017; DOI: 10.1109/TAC.2016.2603607
• J. Rohac, J. M. Hansen, M. Alam, M. Sipos, T. A. Johansen, T. I. Fossen, Validation of Nonlinear Integrated Navigation Solutions, Annuals Reviews in Control, 2017; DOI http://dx.doi.org/10.1016/j.arcontrol.2017.03.006
• G. Tartaglione, E. D’Amato, M. Ariola, P. S. Rossi, T. A. Johansen, Model Predictive Control for a Multi-Body Slung-Load System, Robotics and Autonomous Systems, Vol. 92, June, pp. 1-11, 2017; http://dx.doi.org/10.1016/j.robot.2017.02.007
• E. Skjong, T. A. Johansen, M. Molinas, A. J. Sørensen, Approaches to Economic Energy Management in Diesel-Electric Marine Vessels, IEEE Transactions on Transportation Electrification, Vol. 3, pp. 22 – 35, 2017; DOI: 10.1109/TTE.2017.2648178
• D. K. Kufoalor, G. Frison, L. Imsland, T. A. Johansen, J. B. Jørgensen, Block Factorization of Step Response Model Predictive Control Problems, J. Process Control, Vol. 53, May, pp. 1–14, 2017; http://dx.doi.org/10.1016/j.jprocont.2017.02.003
• J. M. Hansen, T. I. Fossen, T. A. Johansen, Nonlinear Observer Design for GNSS-Aided Inertial Navigation Systems with Time-Delayed GNSS Measurements, Control Engineering Practice, Vol. 60, March; pp. 39–50, 2017; http://dx.doi.org/10.1016/j.conengprac.2016.11.016
• T. A. Johansen, T. I. Fossen, The eXogenous Kalman Filter (XKF), Int. J. Control, vol. 90, pp. 161-167, 2017; DOI 10.1080/00207179.2016.1172390
• T. H. Bryne, T. I. Fossen, T. A. Johansen, Design of Inertial Navigation Systems for Marine Craft with Adaptive Wave Filtering aided by Triple-Redundant Sensor Packages, Int. J. Adaptive Control and Signal Processing, vol. 31, pp. 522–544, 2017; DOI 10.1002/acs.2645
• T. I. Bø, T. A. Johansen, Dynamic Safety Constraints by Scenario Based Economic Model Predictive Control of Marine Electric Power Plants, IEEE Transactions on Transportation Electrification, vol. 3, pp- 13-21, 2017; DOI: 10.1109/TTE.2016.2628786
• T. A. Johansen, J. M. Hansen, T. I. Fossen, Nonlinear Observer for Tightly Integrated Inertial Navigation Aided by Pseudo-Range Measurements, ASME J. Dynamic Systems, Measurement and Control, Vol. 139, Paper DS-15-1088, 2017; DOI 10.1115/1.4034496

Book chapters

·        L. Fusini, T. I. Fossen, T. A. Johansen, Nonlinear Camera- and GNSS-Aided INS for Fixed-Wing UAV using the eXogeneous Kalman Filter, in Sensing and Control for Autonomous Vehicles. Applications to Land, Water and Air Vehicles, T. I Fossen, K. Y. Pettersen, H. Nijmeijer (Eds), Springer, pp. 25-50, 2017

·        H. H. Helgesen, F. S. Leira, T. A. Johansen, T. I. Fossen, Detection and Tracking of Floating Objects using a UAV with Thermal Camera, in Sensing and Control for Autonomous Vehicles. Applications to Land, Water and Air Vehicles, T. I Fossen, K. Y. Pettersen, H. Nijmeijer (Eds), Springer, pp. 289-318, 2017

Conference publications

• D. K. M. Kufoalor, S. Richter, L. Imsland, T. A. Johansen, Structure Exploitation of Practical MPC Formulations for Speeding up First-Order Methods, 56th IEEE Conference on Decision and Control, Melbourne, 2017
• J. Olofsson, C. Veibäck, G. Hendeby, T. A, Johansen, Outline of a System for Integrated Adaptive Ice Tracking and Multi-Agent Path Planning, Workshop on Research, Education and Development of Unmanned Aerial Systems (RED-UAS), Linköping, 2017
• M. Merz, T. A. Johansen, Optimal Path of a UAV Engaged in Wind-influenced Circular Towing, Workshop on Research, Education and Development of Unmanned Aerial Systems (RED-UAS), Linköping, 2017
• S. M. Albrektsen, A. Sægrov, T. A. Johansen, Navigation of UAV using Phased Array Radio, Workshop on Research, Education and Development of Unmanned Aerial Systems (RED-UAS), Linköping, 2017
• A. Hovenburg, F. Andrade, C. Dahlin Rodin, T. A. Johansen, Rune Storvold, Contingency  Path  Planning  for  Hybrid-electric  UAS, Workshop on Research, Education and Development of Unmanned Aerial Systems (RED-UAS), Linköping, 2017
• R. Hann, A. W. Wenz, K. Gryte, T. A. Johansen, Impact of Atmospheric Icing on UAV Aerodynamic Performance, Workshop on Research, Education and Development of Unmanned Aerial Systems (RED-UAS), Linköping, 2017
• C. Dahlin Rodin, T. A. Johansen, Accuracy of Sea Ice Floe Size Observation from an Aerial Camera at Slant Angles, Workshop on Research, Education and Development of Unmanned Aerial Systems  (RED-UAS), Linköping, 2017
• K. P. Cisek, A. P. Zolich, K. Klausen, T. A. Johansen, Ultra-Wide Band Real Time Location Systems: Practical Implementation and Performance Evaluation, Workshop on Research, Education and Development of Unmanned Aerial Systems (RED-UAS), Linköping, 2017
• A. Zolich, T. A. Johansen, J. A. Alfredsen, J. Kuttenkeuler, E. Erstorp, A Formation of Unmanned Vehicles for Tracking of an Acoustic Fish-Tag, IEEE/MTS OCEANS, Anchorage, 2017
• E. Bjørne, E. Brekke, T. A. Johansen, Cascade Attitude Observer for the SLAM filtering problem, 2017 IEEE Conference on Control Technology and Applications, Kohala Coast, Hawaii, USA, 2017
• E. Bjørne, E. Brekke, T. A. Johansen, Redesign and Analysis of Globally Asymptotically Stable Bearing Only SLAM, 20th International Conference on Information Fusion (FUSION), Xian, China, 2017
• D. Rotondo, A. Cristofaro, V. Hassani, T. A. Johansen, Icing diagnosis in unmanned aerial vehicles using an LPV multiple model estimator, IFAC World Congress, Toulouse, 2017
• M. Abdollahpouri, M. Haring, T. A. Johansen, G. Takács, B. Rohal-Ilkiv, Nonlinear State and Parameter Estimation using Discrete-Time Double Kalman Filter, IFAC World Congress, Toulouse, 2017
• S. H. Mathisen, V. Grindheim, T. A. Johansen, Approach Methods for Autonomous Precision Aerial Drop from a Small Unmanned Aerial Vehicle, IFAC World Congress, Toulouse, 2017
• D. Rotondo, A. Cristofaro, K. Gryte, T. A. Johansen, LPV model reference control for fixed-wing UAVs, IFAC World Congress, Toulouse, 2017
• J. Olofsson, E. Brekke, T. A. Johansen, Cooperative Remote Sensing of Ice using a Spatially Indexed Labeled Multi-Bernoulli Filter, Int. Conf. Unmanned Aircraft Systems, Miami, 2017
• L. Fusini, T. A. Johansen, T. I. Fossen, Dead Reckoning of a Fixed-Wing UAV with Inertial Navigation Aided by Optical Flow, Int. Conf. Unmanned Aircraft Systems, Miami, 2017
• A. W. Wenz, T. A. Johansen, Estimation of Wind Velocities and Aerodynamic Coefficients for UAVs using standard Autopilot Sensors and a Moving Horizon Estimator, Int. Conf. Unmanned Aircraft Systems, Miami, 2017
• F. Andrade, T. A. Johansen, R. Storvold, Autonomous UAV surveillance of a ship’s path with MPC for Maritime Situational Awareness, Int. Conf. Unmanned Aircraft Systems, Miami, 2017
• A. Hovenburg, T. A. Johansen, R. Storvold, Mission Performance Trade-offs of Battery-powered sUAS, Int. Conf. Unmanned Aircraft Systems, Miami, 2017
• F. S. Leira, T. A. Johansen, T. I. Fossen, A UAV Ice Tracking Framework for Autonomous Sea Ice Management, Int. Conf. Unmanned Aircraft Systems, Miami, 2017
• S. M. Albrektsen, T. A. Johansen, SyncBoard - A high accuracy sensor timing board for UAV payloads, Int. Conf. Unmanned Aircraft Systems, Miami, 2017
• K. L. Sørensen, T. A. Johansen, Flight Test Results for Autonomous Icing Protection Solution for Small Unmanned Aircraft, Int. Conf. Unmanned Aircraft Systems, Miami, 2017
• T. H. Bryne, R. H. Rogne, T. I. Fossen, T. A. Johansen, Inertial sensors for risk-based redundancy in dynamic positioning, AMSE Int. Conf. on Ocean, Offshore and Arctic Engineering (OMAE), Trondheim, Norway
• A. R. Dahl, R. Skjetne, T. A. Johansen, A structure preserving power system model for dynamic positioning vessels, AMSE Int. Conf. on Ocean, Offshore and Arctic Engineering (OMAE), Trondheim, Norway
• A. Zolich, T. A. Johansen, A. Sægrov, E. Vågsholm, V. Hovstein, Coordinated maritime missions of unmanned vehicles - network architecture and performance analysis, IEEE ICC 2017 Mobile and Wireless Networking, Paris, 2017
• B. Stovner, T. A. Johansen, Hydroacoustically Aided Inertial Navigation for Joint Position and Attitude Estimation in Absence of Magnetic Field Measurements, American Control Conference, Seattle, 2017
• B. Stovner, T. A. Johansen, I. Schjølberg, Globally Exponentially Stable Aided Inertial Navigation with Hydroacoustic Measurements from A Single Transponder, American Control Conference, Seattle, 2017
• J. Olofsson, E. Brekke, T. I. Fossen, T. A. Johansen, Spatially Indexed Clustering for Scalable Tracking of Remotely Sensed Drift Ice, IEEE Aerospace Conference, Big Sky, 2017
• M. Merz, T. A. Johansen, A strategy for robust precision control of an endbody being towed by an orbiting UAV, AIAA Guidance, Navigation, and Control Conference, Grapevine, TX, 2017
• K. Gryte, J. M. Hansen, T. A. Johansen, T. I. Fossen, Robust navigation of UAV using inertial sensors aided by UWB and RTK GPS, AIAA Guidance, Navigation, and Control Conference, Grapevine, TX, 2017

 

2016

Journal publications

• E. Skjong, R. Volden, E. Rødskar, M. Molinas, T. A. Johansen, J. Cunningham, Past, Present and Future Challenges of the Marine Vessel's Electrical Power System, IEEE Transactions on Transportation Electrification, Vol. 2, pp. 522 – 537, 2016; DOI 10.1109/TTE.2016.2552720
• T.A. Johansen, T. I. Fossen, G. C. Goodwin, Three-stage filter for position estimation using pseudo-range measurements, IEEE Transactions on Aerospace and Electronic Systems, Vol. 52, pp. 1631 - 1643, 2016; DOI: 10.1109/TAES.2016.150362
• T. A. Johansen, T. Perez, A. Cristofaro, Ship Collision Avoidance and COLREGS Compliance using Simulation-Based Control Behavior Selection with Predictive Hazard Assessment, IEEE Trans. Intelligent Transportation Systems, vol. 17, pp. 3407 – 3422, 2016; DOI 10.1109/TITS.2016.2551780
• T.A. Johansen, T. I. Fossen, Nonlinear Observer for Tightly Coupled Integration of Pseudo-Range and Inertial Measurements, IEEE Transactions on Control Systems Technology, Vol. 24, pp. 2199 - 2206, 2016; DOI: 10.1109/TCST.2016.2524564
• J. Hosen, H. H. Helgesen, L. Fusini, T. A. Johansen, T. I. Fossen, A Vision-aided Nonlinear Observer for Fixed-wing Unmanned Aerial Vehicle Navigation, AIAA Journal of Guidance, Control, and Dynamics, vol. 39, pp. 1777-1789, 2016
• L. L. Sousa, F. López-Castejón, J. Gilabert, P. Relvas, A. Couto, N. Queiroz, R. Caldas, P. Sousa Dias, H. Dias, M. Faria, F. Ferreira, A. S. Ferreira, J. Fortuna, R. J. Gomes, B. Loureiro, R. Martins, L. Madureira, J. Neiva, M. Oliveira, J. Pereira, J. Pinto, F. Py, H. Queirós, D. Silva, P. B. Sujit, A. Zolich, T. A. Johansen, J. Borges de Sousa, K. Rajan, Integrated monitoring of Mola mola behaviour in space and time, PLOS One, 2016; DOI http://dx.doi.org/10.1371/journal.pone.0160404
• D. K. M. Kufoalor, T. A. Johansen, L. S. Imsland, Efficient Implementation of Step Response Models for Embedded Model Predictive Control, Computers & Chemical Engineering, Volume 90, July, Pages 121–135, 2016
• E. I. Grøtli, T. A. Johansen, Motion- and Communication-Planning of Unmanned Aerial Vehicles in Delay Tolerant Network using Mixed-Integer Linear Programming, Modeling Identification and Control, Vol 37, No 2, pp. 77-97, 2016; DOI: 10.4173/mic.2016.2.1
• T. I. Bø, T. A. Johansen, A. J. Sørensen, E. Mathisen, Dynamic Consequence Analysis of Marine Electric Power Plant in Dynamic Positioning, Applied Ocean Research, Volume 57, April, Pages 30–39, 2016
• E. Skjong, J. A. Suul, A. Rygg, T. A. Johansen, M. Molinas, System Wide Harmonic Mitigation in a Diesel Electric Ship by Model Predictive Control, IEEE Transactions on Industrial Electronics, Vol. 63, pp. 4008 - 4019, 2016
• A. Veksler, T. A. Johansen, F. Borrelli, B. Realfsen, Dynamic positioning with model predictive control, IEEE Transactions on Control Systems Technology, Vol. 24, pp. 1340 - 1353, 2016
• A. Veksler, T. A. Johansen, R. Skjetne, E. Mathiesen, Thrust allocation with dynamic power consumption modulation for diesel-electric ships, IEEE Transactions on Control Systems Technology, vol 24, pp. 578-593, 2016; 10.1109/TCST.2015.2446940

Book chapters

• J. M. Hansen, J. Roháč, M. Šipoš, T. A. Johansen, T. I. Fossen, Validation and Experimental Testing of Observers for Robust GNSS-Aided Inertial Navigation, in Recent Advances in Robotic Systems, G. Wang (Ed), Ch. 6, InTech, 2016
• H. F. Grip, T. I. Fossen, T. A. Johansen, A. Saberi, Nonlinear Observer for Attitude, Position, and Velocity: Theory and Experiments, in Multisensor Attitude Estimation: Fundamental Concepts and Applications, Hassen Fourati, Djamel Eddine Chouaib Belkhiat (Eds), CRC Press, Chapter 17, pp. 291-314, 2016

Conference publications

• P. Ahmadi-Moshkenani, T. A. Johansen, S. Olaru, On Degeneracy in Exploration of Combinatorial Tree in Multi-Parametric Quadratic Programming, 55th IEEE Conference on Decision and Control, Las Vegas, 2016
• P. Ahmadi-Moshkenani, T. A. Johansen, S. Olaru,  A Novel Method for Exploring the Combinatorial Tree in Multi-Parametric Quadratic Programming, 4th European Conf. on Computational Optimization (EUCCO), Leuven, 2016
• M. Abdollahpouri, T. A. Johansen, G. Takacs, B. Rohal-Ilkiv, Globally Convergent Moving Horizon State and Parameter Estimation with Application to Vibrating Cantilever Beams, 4th European Conf. on Computational Optimization (EUCCO), Leuven, 2016
• A. W. Wenz, T. A. Johansen, Icing detection for small fixed wing UAVs using inflight aerodynamic coefficient estimation, IEEE Multi-Conference on Systems and Control, Buenos Aires, 2016
• D. Rotondo, A. Cristofaro, T. A. Johansen, F. Nejjari, V. Puig, Detection of icing and actuators faults in the longitudinal dynamics of small UAVs using an LPV proportional integral unknown input observer, 3rd Conference on Control and Fault-Tolerant Systems, Barcelona, 2016
• J. Borges de Sousa, K. Rajan, J. Pereira, J. Pinto, P. C. Lourenco, J. M. Galocha, J. Fontes, T. A. Johansen, M. Incze, J. Alves, K. Pelekanakis, A. Munafo, R. Petroccia, Rapid Environmental Picture Atlantic exercise 2015: a field report, IEEE Oceans, Monterrey, CA, 2016
• M. Ludvigsen, P. S. Dias, S. Ferreira, T. O. Fossum, V. Hovstein, T. A. Johansen, T. R. Krogstad, Ø. Midtgaard, P. Norgren, J. Sousa, Ø. Sture, E. Vågsholm, A. Zolich, Autonomous Network of Heterogeneous Vehicles for Marine Research and Management, IEEE Oceans, Monterrey, CA, 2016
• F. Py, J. Pinto, M. A. Silva, T. A. Johansen, J. Sousa, K. Rajan, EUROPtus: A mixed-initiative controller for multi-vehicle oceanographic field experiments, Int. Symp. Experimental Robotics (ISER), Tokyo, 2016
• E. K. Jørgensen, T. A. Johansen, I. Schjølberg, Enhanced Hydroacoustic Range Robustness of Three-Stage Position Filter based on Long Baseline Measurements with Unknown Wave Speed, 10th IFAC Conference on Control Applications in Marine Systems, Trondheim, 2016
• V. W. Henriksen, A. G. Røine, E. Skjong, T. A. Johansen, Three-axis Motion Compensated Crane Head Control, 10th IFAC Conference on Control Applications in Marine Systems, Trondheim, 2016
• T. A. Johansen, A. Cristofaro, T. Perez, Ship Collision Avoidance Using Scenario-Based Model Predictive Control, 10th IFAC Conference on Control Applications in Marine Systems, Trondheim, 2016
• R. H. Rogne, T. H. Bryne, T. I. Fossen, T. A. Johansen, MEMS-based Inertial Navigation on Dynamically Positioned Ships: Dead Reckoning, 10th IFAC Conference on Control Applications in Marine Systems, Trondheim, 2016
• T. H. Bryne, R. H. Rogne, T. I. Fossen, T. A. Johansen, Attitude and Heave Determination on Ships using MEMS-based Inertial Measurements, 10th IFAC Conference on Control Applications in Marine Systems, Trondheim, 2016
• T. A. Johansen, E. Brekke, Globally Exponentially Stable Kalman Filtering for SLAM with AHRS, FUSION, Heidelberg, 2016
• K. T. Borup, T. I. Fossen, T. A. Johansen, A Nonlinear Model-Based Wind Velocity Observer for Unmanned Aerial Vehicles, 10th IFAC Symposium on Nonlinear Control Systems, Monterrey, CA, USA, 2016
• M. Merz, T. A. Johansen, Feasibility Study of a Circularly Towed Cable-Body System for UAV Applications, International Conference on Unmanned Aircraft Systems, Washington DC, 2016
• K. Klausen, J. B. Moe, J. C. van den Hoorn, A. Gomola, T. I. Fossen, T. A. Johansen, Coordinated Control Concept for Recovery of a Fixed-Wing UAV on a Ship using a Net Carried by Multirotor UAVs, International Conference on Unmanned Aircraft Systems, Washington DC, 2016
• H. H. Helgesen, F. S. Leira, T. A. Johansen, T. I. Fossen, Tracking of Marine Surface Objects from Unmanned Aerial Vehicles with a Pan/Tilt Unit using a Thermal Camera and Optical Flow, International Conference on Unmanned Aircraft Systems, Washington DC, 2016
• A. W. Wenz, T. A. Johansen, A. Cristofaro, Combining model-free and model-based Angle of Attack estimation for small fixed-wing UAVs using a standard sensor suite, International Conference on Unmanned Aircraft Systems, Washington DC, 2016
• T. A. Johansen, T. Perez, Unmanned Aerial Surveillance System for Hazard Collision Avoidance in Autonomous Shipping, International Conference on Unmanned Aircraft Systems, Washington DC, 2016
• P. A. Moshkenani, S. Olaru, T. A. Johansen, Further Results on the Exploration of Combinatorial Tree in Multi-Parametric Quadratic Programming, European Control Conference, Aalborg, 2016
• T. A. Johansen, T. I. Fossen, Nonlinear Filtering with eXogenous Kalman Filter and Double Kalman Filter, European Control Conference, Aalborg, 2016
• A. Cristofaro, T. A. Johansen, An unknown input observer based control allocation scheme for icing diagnosis and accommodation in overactuated UAVs, European Control Conference, Aalborg, 2016
• B. Stovner, T. A. Johansen, T. I. Fossen, I. Schjølberg, Three-stage Filter for Position and Velocity Estimation from Long Baseline Measurements with Unknown Wave Speed, American Control Conference, Boston, 2016
• J. M. Hansen, T. A. Johansen, T. I. Fossen, Tightly Coupled Integrated Inertial and Real-Time-Kinematic Positioning Approach Using Nonlinear Observer,  American Control Conference, Boston, 2016
• R. H. Rogne, T. H. Bryne, T. A. Johansen, T. I. Fossen, Fault Detection in Lever-arm-compensated Position References System based on Attitude Estimates and Inertial Measurements - Applicable in Dynamic Positioning, American Control Conference, Boston, 2016
• A. Grancharova, T. A. Johansen, V. Petrova, Distributed Nonlinear Model Predictive Control by Sequential Linearization and Accelerated Gradient Method,11th IFAC Symposium on Dynamics and Control of Process Systems, including Biosystems (DYCOPS-CAB 2016), Trondheim, Norway, 2016.
• A. Zolich, K. R. Skøien, J. A. Alfredsen, T. A. Johansen, A communication bridge between underwater sensors and Unmanned Vehicles using a surface Wireless Sensor Network – design and validation, IEEE Oceans, Shanghai, 2016
• E. Skjong, S. Gale, M. Molinas and T. A. Johansen, Data-Driven Decision Support Tool for Power Quality Measures in a Marine Vessel Power System, IEEE Transportation Electrification Conference and Expo (ITEC), Detroit, 2016
• E. Skjong, J. A. Suul, M. Molinas, T. A. Johansen, Optimal Compensation of Harmonic Propagation in a Multi-Bus Microgrid, ICREPQ16, Madrid, 2016
• K. L. Sørensen, T. A. Johansen, Thermodynamics of a Carbon Nano-Materials Based Ice Protection System for Unmanned Aerial Vehicles, IEEE Aerospace Conference, Big Sky, 2016
• L. Fusini, T. I. Fossen, T. A. Johansen, A Globally Exponentially Stable Non-linear Velocity Observer for Vision-aided UAV Dead Reckoning, IEEE Aerospace Conference, Big Sky, 2016
• S. Mathisen, K. Gryte, T. A. Johansen, T. I. Fossen, Non-linear Model Predictive Control for Longitudinal and Lateral Guidance of a Small Fixed-Wing UAV in Precision Deep Stall Landing, AIAA Guidance, Navigation, and Control Conference, San Diego, 2016
• J. Hosen, H. Helgesen, L. Fusini, T. I. Fossen, T. A. Johansen, A Vision-aided Nonlinear Observer for Fixed-wing UAV Navigation, AIAA Guidance, Navigation, and Control Conference, San Diego, 2016

 

2015

Journal publications

• E. Skjong, E. Rødskar, M. Molinas, T. A. Johansen, J. Cunningham, The Marine Vessel’s Electrical Power System: From its Birth to Present Day, IEEE Proceedings, pp. 2410 – 2424, December, 2015; 10.1109/JPROC.2015.2496722
• T. I. Bø, A. R. Dahl, T. A. Johansen, E. Mathiesen, M. R. Miyazaki, E. Pedersen, R. Skjetne, A. J. Sørensen, L. Thorat, K. K. Yum, Marine Vessel and Power Plant System Simulator, IEEE Access, Vol. 3, pp. 2065 - 2079, 2015; 10.1109/ACCESS.2015.2496122
• D. K. M. Kufoalor, V. Aaker, L. S. Imsland, T. A. Johansen, G. O. Eikrem, Automatically Generated Embedded Model Predictive Control: Moving an Industrial PLC-based MPC to an Embedded Platform, J. Optimal Control - Applications and Methods, vol. 36, pp. 705–727, 2015; DOI: 10.1002/oca.2182
• J. Du, T. A. Johansen, Integrated Multi-linear Model Predictive Control of Nonlinear Systems Based on Gap Metric, Industrial and Engineering Chemistry Research, Vol. 54, pp 6002–6011, 2015; DOI: 10.1021/ie504170d
• R. Skulstad, C. L. Syversen, M. Merz, N. Sokolova, T. I. Fossen, T. A. Johansen, Autonomous Net Recovery of Fixed-Wing UAV with Single-Frequency Carrier-Phase Differential GNSS, IEEE Aerospace and Electronic Systems Magazine, Vol. 30, No. 5, May, pp. 18-27, 2015; 10.1109/MAES.2015.7119821
• A. Grancharova, E. I. Grøtli, D. T. Ho, T. A. Johansen, UAVs Trajectory Planning by Distributed MPC under Radio Communication Path Loss Constraints, Journal of Intelligent and Robotic Systems, vol. 79, pp. 115-134, 2015, DOI: 10.1007/s10846-014-0090-1
• A. W. Malik, B. Thørnberg, Q. Anwar, T. A. Johansen, Real Time Decoding of Color Symbol for Optical Positioning System, International Journal of Advanced Robotic Systems, Vol. 12, 2015; DOI: 10.5772/59680
• D. Sbarbaro, M. Vauhkonen, T. A. Johansen, State estimation and inverse problems in Electrical Impedance Tomography: observability, convergence and regularization, Inverse Problems, Vol. 31, Id. 045004, 2015 (doi:10.1088/0266-5611/31/4/045004)
• D. T. Ho, E. I. Grøtli, P. B. Sujit, T. A. Johansen, J. Sousa, Optimization of Wireless Sensor Network and UAV Data Acquisition, Journal of Intelligent and Robotic Systems, Vol. 78, pp. 159-179, 2015 (DOI: 10.1007/s10846-015-0175-5)
• H. F. Grip, T. I. Fossen, T. A. Johansen, A. Saberi, Globally Exponentially Stable Attitude and Gyro Bias Estimation with Application to GNSS/INS Integration, Automatica, vol. 51, pp. 158166, 2015. DOI: http://dx.doi.org/10.1016/j.automatica.2014.10.076

Conference publications

• A. Cristofaro, M. M. Polycarpou, T. A. Johansen, Fault diagnosis and fault-tolerant control allocation for a class of nonlinear systems with redundant inputs,  54th IEEE Conference on Decision and Control, Osaka, 2015
• M. M. Seron, T. A. Johansen, J. De Dona, A. Cristofaro, Detection and Estimation of Icing in Unmanned Aerial Vehicles using a Bank of Unknown Input Observers, Australian Control Conference, 2015
• A. P. Zolich, T. A. Johansen, K. P. Cisek, K. Klausen, Unmanned Aerial System Architecture for Maritime Missions. Design & Hardware Description, Workshop on Research, Education and Development of Unmanned Aerial Systems (RED-UAS), 2015
• D. Rotondo, A. Cristofaro, T. A. Johansen, F. Nejjari, V. Puig, Icing detection in unmanned aerial vehicles with longitudinal motion using an LPV unknown input observer, IEEE Multi-Conference on Systems and Control, Sydney, 2015; DOI: 10.1109/CCA.2015.7320740
• B. J. T. Binder, D. K. M. Kufoalor, T. A. Johansen, Scalability of QP-solvers for Embedded Model Predictive Control Applied to a Subsea Petroleum Production System, IEEE Multi-Conference on Systems and Control, Sydney, 2015; 10.1109/CCA.2015.7320771
• K. Klausen, T. I. Fossen, T. A. Johansen, A. P. Aguiar, Cooperative Path-Following for Multirotor UAVs with a Suspended payload, IEEE Multi-Conference on Systems and Control, Sydney, 2015; DOI: 10.1109/CCA.2015.7320800
• T. Poloni, B. Rohal-Ilkiv, T. A. Johansen, Moving Horizon Estimation for Integrated Navigation Filtering, 5th IFAC Conference on Nonlinear Model Predictive Control, Seville, 2015; DOI: 10.1016/j.ifacol.2015.11.331
• D. K. M. Kufoalor, L. Imsland, T. A. Johansen, Efficient Implementation of Step Response Prediction Models for Embedded Model Predictive Control, 5th IFAC Conference on Nonlinear Model Predictive Control, Seville, 2015; DOI: 10.1016/j.ifacol.2015.11.283
• J. Linder, M. Enqvist, T. I. Fossen, T. A. Johansen, F. Gustafsson, Modeling for IMU-based Online Estimation of a Ship's Mass and Center of Mass, 10th IFAC Conference on Manoeuvring and Control of Marine Craft, Copenhagen, 2015; DOI: 10.1016/j.ifacol.2015.10.280
• J. Linder, M. Enqvist, T. I. Fossen, T. A. Johansen, F. Gustafsson, Online Estimation of Ship's Mass and Center of Mass Using Inertial Measurements, 10^th IFAC Conference on Manoeuvring and Control of Marine Craft, Copenhagen, 2015; DOI: 10.1016/j.ifacol.2015.10.270
• T. H. Bryne, T. I. Fossen, T. A. Johansen, A Virtual-Vertical Reference Concept for GNSS/INS Applications at the Sea Surface, Conference: 10^th IFAC Conference on Manoeuvring and Control of Marine Craft, Copenhagen, 2015; DOI: 10.1016/j.ifacol.2015.10.269
• D. K. M. Kufoalor, L. S. Imsland, T. A. Johansen, High-performance Embedded Model Predictive Control using Step Response Models, 16th IFAC workshop on Control Applications of Optimization, 2015; DOI: 10.1016/j.ifacol.2015.11.073
• K. L. Sørensen, M. Blanke, T. A. Johansen, Diagnosis of Wing Icing Through Lift and Drag Coefficient Change Detection for Small Unmanned Aircraft, Proc. 9th IFAC Symposium on Fault Detection, Supervision and Safety of Technical Processes, Paris, 2015
• M. Stokkeland, K. Klausen, T. A. Johansen, Autonomous visual navigation of unmanned aerial vehicle for wind turbine inspection, International Conference on Unmanned Aircraft Systems, Denver, 2015; DOI: 10.1109/ICUAS.2015.7152389
• E. Skjong, S. A. Nundal, F. S. Leira, T. A. Johansen, Autonomous search and tracking of objects using model predictive control of unmanned aerial vehicle and gimbal: Hardware-in-the-loop simulation of payload and avionics, International Conference on Unmanned Aircraft Systems, Denver, 2015; DOI: 10.1109/ICUAS.2015.7152377
• T. A. Johansen, A. Cristofaro, K. L. Sørensen, J. M. Hansen, T. I. Fossen, On estimation of wind velocity, angle-of-attack and sideslip angle of small UAVs using standard sensors, International Conference on Unmanned Aircraft Systems, Denver, 2015; DOI: 10.1109/ICUAS.2015.7152330
• J. M. Hansen, T. I. Fossen, T. A. Johansen, Nonlinear Observer for INS Aided by Time-Delayed GNSS Measurements - Implementation and UAV Experiments, International Conference on Unmanned Aircraft Systems, Denver, 2015; DOI: 10.1109/ICUAS.2015.7152287
• R. G. Barbatei, A. Skavhaug, T. A. Johansen, Acquisition and Relaying of Data from a Floating Wireless Sensor Node using an Unmanned Aerial Vehicle, International Conference on Unmanned Aircraft Systems, Denver, 2015; DOI: 10.1109/ICUAS.2015.7152350
• S. H. Mathisen, T. I. Fossen, T. A. Johansen, Non-linear Model Predictive Control for Guidance of a Fixed-Wing UAV in Precision Deep Stall Landing, International Conference on Unmanned Aircraft Systems, Denver, 2015; DOI: 10.1109/ICUAS.2015.7152310
• K. Klausen, T. I. Fossen, T. A. Johansen, Nonlinear control of a multirotor UAV with suspended load, International Conference on Unmanned Aircraft Systems, Denver, 2015; DOI: 10.1109/ICUAS.2015.7152289
• L. Fusini, J. Hosen, H. H. Helgesen, T. A. Johansen, T. I. Fossen, Experimental Validation of a Uniformly Semi-globally Exponentially Stable Non-linear Observer for GNSS- and Camera-aided Inertial Navigation for Fixed-wing UAVs, International Conference on Unmanned Aircraft Systems, Denver, 2015; DOI: 10.1109/ICUAS.2015.7152371
• F. S. Leira, K. Trnka, T. I. Fossen, T. A. Johansen, A Ligth-Weight Thermal Camera Payload with Georeferencing Capabilities for Small Fixed-Wing UAVs, International Conference on Unmanned Aircraft Systems, Denver, 2015; DOI: 10.1109/ICUAS.2015.7152327
• E. Skjong, M. Ochoa-Gimenez, M. Molinas, T. A. Johansen, Management of Harmonic Propagation in a Marine Vessel by use of Optimization, Proc. IEEE Transportation Electrification Conference and Expo (ITEC 2015), Detroit, 2015; DOI: 10.1109/ITEC.2015.7165797
• E. Skjong, M. Molinas, T. A. Johansen, R. Volden, Shaping the current waveform of an active filter for optimized system level harmonic conditioning, Int. Conf. Vehicle Technology and Intelligent Transport Systems (VEHITS), Lisbon, 2015
• E. Skjong, M. Molinas, T. A. Johansen, Optimized current reference generation for system-level harmonic mitigation in a diesel-electric ship using non-linear model predictive control, IEEE Int. Conf. Industrial Technology, Seville, 2015; DOI: 10.1109/ICIT.2015.7125439
• D. K. M. Kufoalor, B. J. T. Binder, H. J. Ferreau, L. Imsland, T. A. Johansen, M. Diehl, Automatic Deployment of Industrial Embedded Model Predictive Control using qpOASES, European Control Conference, Linz, 2015; DOI: 10.1109/ECC.2015.7330930
• R. H. Rogne, T. A. Johansen, T. I. Fossen, On Attitude Observers and Inertial Navigation for Reference System Fault Detection and Isolation in Dynamic Positioning, European Control Conference, Linz, 2015; DOI: 10.1109/ECC.2015.7331100
• A. Cristofaro, T. A. Johansen, A. Pedro Aguiar, Icing Detection and Identification for Unmanned Aerial Vehicles: Multiple Model Adaptive Estimation, European Control Conference, Linz, 2015; DOI: 10.1109/ECC.2015.7330774
• T. A. Johansen, T. I. Fossen, Nonlinear Observer for Inertial Navigation Aided by Pseudo-Range and Range-Rate Measurements, European Control Conference, Linz, 2015; DOI: 10.1109/ECC.2015.7330778
• A. Nikoofard, T. A. Johansen, G.-O. Kaasa, Evaluation of Lyapunov-based Adaptive Observer using Low-Order Lumped Model for Estimation of Production Index in Under-balanced Drilling, 9th International Symposium on Advanced Control of Chemical Processes (ADCHEM),Whistler, British Columbia, Canada, 2015
• B. J.T. Binder, A. Pavlov, T. A. Johansen, Estimation of Flow Rate and Viscosity in a Well with an Electric Submersible Pump using Moving Horizon Estimation, 2nd IFAC Workshop on Automatic Control in Offshore Oil and Gas Production, Florianópolis, Brazil, 2015
• A. Nikoofard, U. J. Flø Aarsnes, T. A. Johansen, G.-O. Kaasa, Estimation of States and Parameters of Drift-Flux Model with Unscented Kalman Filter, 2nd IFAC Workshop on Automatic Control in Offshore Oil and Gas Production, Florianópolis, Brazil, 2015
• A. Cristofaro, T. A. Johansen, An unknown input observer approach to icing detection for unmanned aerial vehicles, American Control Conference, Chicago, 2015; DOI: 10.1109/ACC.2015.7170736
• T. I. Bø, A. R. Dahl, T. A. Johansen, E. Mathiesen, M. R. Miyazaki, E. Pedersen, B. Rokseth, R. Skjetne, A. J. Sørensen, L Thorat, I. B Utne, K. K. Yum, Real-time Marine Vessel and Power Plant Simulator, ASME 34th International Conference on Ocean, Offshore and Arctic Engineering (OMAE2015) in St. John's, Newfoundland, Canada, 2015; DOI:10.1115/OMAE2015-41479
• K. L. Sørensen, A. S. Helland, T. A. Johansen, Carbon Nanotube Based Airfoil Heating System for In-Flight Anti-Icing and De-Icing of UAVs, IEEE Aerospace Conference, Big Sky, 2015; DOI: 10.1109/AERO.2015.7119206
• R. Skulstad, C. L. Syversen, M. Merz, N. Sokolova, T. I. Fossen, T. A. Johansen, Net Recovery of UAV with Single-Frequency RTK GPS, IEEE Aerospace Conference, Big Sky, 2015; DOI: 10.1109/AERO.2015.7119205
• F. Leira, T. A. Johansen, T. I. Fossen, Automatic detection, classification and tracking of objects in the ocean surface from UAVs using a thermal camera, IEEE Aerospace Conference, Big Sky, 2015; DOI: 10.1109/AERO.2015.7119238
• D. K. M. Kufoalor, B. J. T. Binder, L. Imsland, T. A. Johansen, G. O. Eikrem, A. Pavlov, Enabling high-performance industrial embedded model predictive control using code generation and high-speed solvers, Nordic Process Control Workshop, Trondheim 2015

2014                                        

Journal publications

• M. Alberding, J. Tjønnås, T. A. Johansen, Integration of Vehicle Yaw Stabilization and Rollover Prevention through Nonlinear Hierarchical Control Allocation, Vehicle System Dynamics, Vol. 52, pp. 1607-1621, 2014. http://dx.doi.org/10.1080/00423114.2014.952643
• T. A. Johansen, T. I. B, E. Mathiesen, A. Veksler, A. J. Sørensen, Dynamic Positioning System as Dynamic Energy Storage on Diesel-Electric Ships, IEEE Trans. Power Systems, Vol. 29, pp. 3086-3091, 2014. DOI: 10.1109/TPWRS.2014.2317704
• J. Du, T. A. Johansen, Integrated multimodel control of nonlinear systems based on gap metric and stability margin, Ind. & Engr. Chemistry Research, Vol. 53, pp. 10206-10215, 2014. DOI: 10.1021/ie500035p
• J. Du, T. A. Johansen, A gap metric based weighting method for multimodel predictive control of MIMO nonlinear systems, J. Process Control, Vol. 24, pp. 1346-1357, 2014. DOI: 10.1016/j.jprocont.2014.06.002
• J. Dæhlen, G. O. Eikrem, T. A. Johansen, Nonlinear Model Predictive Control using Trust-Region Derivative-Free Optimization, J. Process Control, Vol. 24, pp.1106-1120, 2014. DOI: 10.1016/j.jprocont.2014.04.011
• A. Cristofaro, T. A. Johansen, Fault Tolerant Control Allocation using Unknown Input Observers, Automatica, Vol. 50, pp. 1891-1897, 2014 (full version). DOI: 10.1016/j.automatica.2014.05.007
• A. Nikoofard, T. A. Johansen, H. Mahdianfar, A. Pavlov, Design and Comparison of Constrained MPC with PID Controller for Heave Disturbance Attenuation in Offshore Managed Pressure Drilling Systems, MTS Journal, Vol. 48, No. 2, pp 90-103, 2014. DOI: http://dx.doi.org/10.4031/MTSJ.48.2.4
• D. Sui and T. A. Johansen, Linear Constrained Moving Horizon Estimator With Pre-Estimating Observer, Systems and Control Letters, Vol. 67, pp.40-45, 2014. DOI: http://dx.doi.org/10.1016/j.sysconle.2014.02.003
• T. Poloni, B. Rohal-Ilkiv, T. A. Johansen, Mass Flow Estimation with Model Bias Correction for a Turbocharged Diesel Engine, Control Engineering Practice, Vol. 23, pp. 22-31, 2014. DOI: http://dx.doi.org/10.1016/j.conengprac.2013.10.011

 

Conference publications

• A. Cristofaro, T. A. Johansen, Fault-tolerant input allocation with actuator dynamics: finite-time control reconfiguration, Proc. 53rd IEEE Conference on Decision and Control, Los Angeles, 2014
• T. A. Johansen, A. Zolich, T. Hansen, A. J. Sørensen, Unmanned Aerial Vehicle as Communication Relay for Autonomous Underwater Vehicle - Field Tests, IEEE Globecom Workshop - Wireless Networking and Control for Unmanned Autonomous Vehicles, Austin, TX, 2014
• A. Veksler, T. A. Johansen, F. Borrelli, B. Realfsen, Cartesian thrust allocation algorithm with variable direction thrusters, turn rate limits and singularity avoidance, IEEE Multi-Conference on Systems and Control, Nice, 2014
• B. J. T. Binder, D. K. M. Kufoalor, A. Pavlov, T. A. Johansen, Embedded Model Predictive Control for an Electric Submersible Pump on a Programmable Logic Controller, IEEE Multi-Conference on Systems and Control, Nice, 2014
• R. H. Rogne, T. A. Johansen, T. I. Fossen, Observer and IMU-based Detection of Faults in Position Reference Systems and Gyrocompasses with Dual Redundancy in Dynamic Positioning, IEEE Multi-Conference on Systems and Control, Nice, 2014
• A. Veksler, T. A. Johansen, R. Skjetne, E. Mathiesen, Reducing power transients in diesel-electric dynamically positioned ships using re-positioning, IEEE Industrial Electronics Conference (IECON2014), Dallas, TX, 2014
• A. Nikoofard, T. A. Johansen, G. O. Kaasa, Nonlinear moving horizon observer for estimation of states and parameters in under-balanced drilling operations, ASME Dynamic Systems and Control Conference (DSCC 2014), San Antonio, TX, 2014
• D. K. M. Kufoalor, S. Richter, L. Imsland, T. A. Johansen, M, Morari, G. O. Eikrem, Embedded Model Predictive Control on a PLC Using a Primal-Dual First-Order Method for a Subsea Separation Process, Proc. 22nd IEEE Mediterranean Conference on Control and Automation (MED'14), Palermo, Italy, 2014
• T. H. Bryne, T. I. Fossen, T. A. Johansen. Nonlinear Observer with Time-Varying Gains for Inertial Navigation Aided by Satellite Reference Systems in Dynamic Positioning, Proc. 22nd IEEE Mediterranean Conference on Control and Automation (MED'14), Palermo, Italy, 2014
• L. Fusini, T. I. Fossen, T. A. Johansen. A Uniformly Semiglobally Exponentially Stable Nonlinear Observer for GNSS- and Camera-Aided Inertial Navigation, Proc. 22nd IEEE Mediterranean Conference on Control and Automation (MED'14), Palermo, Italy, 2014
• K. Klausen, T. I. Fossen, T. A. Johansen. Suspended Load Motion Control using Multicopters, Proc. 22nd IEEE Mediterranean Conference on Control and Automation (MED'14), Palermo, Italy, 2014
• V. E. Hovstein, A. Sægrov, T. A. Johansen, Experiences with coastal and maritime UAS BLOS operation with phased-array antenna digital payload data link, Int. Conf. Unmanned Aerial Systems (ICUAS), Orlando, 2014
• T. I. Bø, T. A. Johansen, Dynamic Safety Constraints by Scenario Based Economic Model Predictive Control, IFAC World Congress, Cape Town, 2014
• A. Nikoofard, T. A. Johansen, G.-O. Kaasa, Design and comparison of adaptive estimators for Under-Balanced Drilling, American Control Conference, Portland, 2014
• P. A. McGillivary, A. Hackbarth, J. Borges de Sousa, T. A. Johansen, Optimizing surveillance by multiple interacting unmanned aircraft systems using adaptive albatross flight controls, Ocean Sciences Meeting, Honolulu, 2014
• M. Faria, J. Pinto F. Py, J. Fortuna, H. Dias, R. Martins, F. Leira, T. A. Johansen, J. Sousa, K. Rajan, Coordinating UAVs and AUVs for Oceanographic Field Experiments: Challenges and Lessons Learned Experiments in UAV and AUV control for Coastal Oceanography, IEEE Int. Conf. Robotics and Automation, Hong Kong, 2014

 

2013

Journal publications

• F. Bayat, T. A. Johansen, Multi-Resolution Explicit Model Predictive Control: Delta-Model Formulation and Approximation, IEEE Transactions Automatic Control, vol. 58, pp. 2979-2984, 2013. DOI: http://dx.doi.org/10.1109/TAC.2013.2259982
• T. A. Johansen, D. Sui, R. Nyb, Regularized Nonlinear Moving Horizon Observer with Robustness to Delayed and Lost Data, IEEE Trans. Control Systems Technology, Vol. 21, pp. 2114-2128, 2013
• T. Poloni A. A. Eielsen, B. Rohal-Ilkiv, T. A. Johansen, Adaptive Model Estimation of Vibration Motion for a Nanopositioner with Moving Horizon Optimized Extended Kalman Filter, ASME J. Dynamic Systems Measurement and Control, Vol. 135, pp. 041019-1-14, 2013. DOI: 10.1115/1.4024008
• C. Feller, T. A. Johansen, S. Olaru, An improved algorithm for combinatorial multi-parametric quadratic programming, Automatica, Vol. 49, Pages 1370-1376, 2013
• S. M. Hosseini, A. Fatehi, A. K. Sedigh, T. A. Johansen, Automatic model bank selection in multiple model identification of gas turbine dynamics, IMechE J. Systems and Control Engineering, Vol. 227, pp. 482-494, 2013. doi:10.1177/0959651813479863
• T. A. Johansen, T. I. Fossen, Control Allocation - A Survey, Automatica, Vol. 49, pp 1087-1103, 2013.

Book chapters

• A. Grancharova and T. A. Johansen, Distributed Model Predictive Control of Interconnected Nonlinear Systems by Dynamic Dual Decomposition, in Distributed MPC Made Easy, Jose M. Maestre and Rudy R. Negenborn (Eds), 2013

Conference publications

• A. Cristofaro and T. A. Johansen, Fault-tolerant control allocation: an Unknown Input Observer based approach with constrained output fault directions, IEEE Conf. Decision and Control, Firenze, 2013
• D. T. Ho, E. I. Grtli, P. B. Sujit, T. A. Johansen, J. Borges De Sousa, Performance Evaluation of Cooperative Relay and Particle Swarm Optimization Path Planning for UAV and Wireless Sensor Network, Globecom Workshop - Wireless Networking and Control for Unmanned Autonomous Vehicles, Atlanta, 2013
• T. I. Bø, T. A. Johansen, E. Mathiesen, Unit Commitment of Generator Sets During Dynamic Positioning Operation Based on Consequence Simulation, 9th IFAC Conference on Control Applications in Marine Systems, Osaka, Japan, 2013
• M. Rindarøy, T. A. Johansen, Fuel Optimal Thrust Allocation in Dynamic Positioning, 9th IFAC Conference on Control Applications in Marine Systems, Osaka, Japan, 2013
• T. A. Johansen, Embedded MPC - Current technology, applications and challenges, Workshop on Optimal and Model Predictive Control OMPC, Bayreuth, 2013
• J. Hlava, J. Opalka, T. A. Johansen, Model predictive control of power plant superheater comparison of multi model and nonlinear approaches, 18th International Conference on Methods and Models in Automation and Robotics, Międzyzdroje, Poland, 2013.
• A. Grancharova, E. I. Grøtli, T. A. Johansen, Rotary-Wing UAVs Path Planning by Distributed Linear MPC with Reconfigurable Communication Network Topologies, IFAC Workshop on Distributed Estimation and Control in Networked Systems, Koblenz, 2013
• D. K. Kufoalor, V. Aaker, T.A. Johansen, L. Imsland, G. O. Eikrem, Embedded Model Predictive Control: Moving an Industrial PC‐based MPC to an Embedded Platform, Nordic Process Control Workshop, Oulu, Finland, 2013
• D. T. Ho, E. I. Grøtli, P. B. Sujit, T. A. Johansen, J. B. de Sousa, Cluster-based Communication Topology Selection and UAV Path Planning in Wireless Sensor Networks, International Conference on Unmanned Aircraft Systems, Atlanta, 2013
• E. J. Forsmo, E. I. Grøtli, T. I. Fossen, T. A. Johansen, Optimal Search Mission with Unmanned Aerial Systems using MILP, International Conference on Unmanned Aircraft Systems, Atlanta, 2013
• C. Feller and T. A. Johansen, Explicit MPC of higher-order linear processes via combinatorial multi-parametric quadratic programming, European Control Conference, Zurich, 2013
• A. Veksler, T. A. Johansen, R. Skjetne, Governor principles for increased safety on vessels with diesel-electric propulsion, European Control Conference, Zurich, 2013
• T. I. Bø, T. A. Johansen, Scenario Based Fault Tolerant Model Predictive Control for Diesel-Electric Marine Power Plant, IEEE/MTS OCEANS, Bergen, 2013
• A. Nikoofard, T. A. Johansen, H. Mahdianfar, A. Pavlov, Constrained MPC Design for Heave Disturbance Attenuation in Offshore Drilling Systems, IEEE/MTS OCEANS, Bergen, 2013
• H. F. Grip, T. I. Fossen, T. A. Johansen, A. Saberi, Nonlinear Observer for GNSS-Aided Inertial Navigation with Quaternion-Based Attitude Estimation, American Control Conference, Washington DC, 2013
• D. K. Kufoalor, T. A. Johansen, Reconfigurable Fault Tolerant Flight Control based on Nonlinear Model Predictive Control, American Control Conference, Washington DC, 2013
• T. Poloni, B. Rohal-Ilkiv, T. A. Johansen. Parallel Numerical Optimization for Fast Adaptive Nonlinear Moving Horizon Estimation, IEEE International Conference on Networking Sensing and Control, Paris, 2013
• D. T. Ho, E. I. Grøtli, T. A. Johansen, Heuristic Algorithm and Cooperative Relay for Efficient Energy Data Collection with a UAV, IEEE Int. Conf. Computing, Management and Telecommunications, Ho Chi Minh City, Vietnam, 2013

2012

Books

• A. Grancharova, T. A. Johansen, Explicit Nonlinear Model Predictive Control, Springer, Lecture Notes in Control and Information Sciences 429, ISBN 978-3-642-28779-4, 2012

Journal publications

• D. Sui, T. A. Johansen, On the Exponential Stability of Moving Horizon Observer for Globally N-Detectable Nonlinear Systems, Asian J. Control, Vol. 14, pp. 1649-1654, 2012; doi: 10.1002/asjc.475
• T. Glaria, D. Sbarbaro, T.A. Johansen, R. Pena, Observer design for linear processes model with implicit nonlinear output map, J. Process Control, Vol. 22, pp. 1647-1654, 2012
• S. M. Hosseini, A. Fatehi, T. A. Johansen, A. K. Sedigh, Multiple model bank selection based on nonlinearity measure and H-gap metric, J. Process Control, Vol. 22, pp. 1732-1742, 2012
• H. F. Grip, A. Saberi, T. A. Johansen, Observers for Interconnected Nonlinear and Linear Systems, Automatica, Vol. 48, pp. 1339-1346, 2012; http://dx.doi.org/10.1016/j.automatica.2012.04.008
• L. Feng, C. R. Gutvik, T. A. Johansen, D. Sui, A. O. Brubakk, Approximate Explicit Nonlinear Receding Horizon Control for Decompression of Divers, IEEE Trans. Control Systems Technology, Vol. 20, pp. 1275-1284, 2012; 10.1109/TCST.2011.2162516
• H. Langjord, G.-O. Kaasa, T. A. Johansen, Adaptive nonlinear observer for electro-pneumatic clutch actuator with position sensor, IEEE Trans. Control Systems Technology, vol. 20, pp. 1033-1040, 2012; 10.1109/TCST.2011.2151283
• F. Bayat, T. A. Johansen, A. A. Jalali, Flexible Piecewise Function Evaluation Methods Based on Truncated Binary Search Trees and Lattice Representation in Explicit MPC, IEEE Trans. Control Systems Technology, vol. 20, pp. 632-640, 2012; 10.1109/TCST.2011.2141134
• H. F. Grip, T. I. Fossen, T. A. Johansen, A. Saberi, Attitude Estimation Using Biased Gyro and Vector Measurements with Time-Varying Reference Vectors, IEEE Trans. Automatic Control, vol. 57, pp. 1332-1338, 2012; 10.1109/TAC.2011.2173415
• E. I. Grøtli, T. A. Johansen, Path planning for UAVs under communication constraints using SPLAT! and MILP, Journal of Intelligent and Robotic Systems, Vol. 65, pp. 265-282, 2012; 10.1007/s10846-011-9619-8

Book chapters

• T. Poloni, B. Rohal-Ilkiv, D. Alberer, L. del Re and T. A. Johansen, Comparison of Sensor Configurations for Mass Flow Estimation of Turbocharged Diesel Engines, in Identification for Automotive Systems, D. Alberer, H. Hjalmarsson, L. del Re (Eds), Lecture Notes in Control and Information Sciences, 418, Springer-Verlag, ISBN 978-1-4471-2220-3, pp. 303-326, 2012
• E. I. Grøtli, T. A. Johansen, Path planning for UAVs under Communication Constraints using SPLAT! and MILP, in Recent Developments in Unmanned Aircraft Systems, K. P. Valavanis (Ed.), ISBN 978-94-007-3032-8, Springer, 2012

Conference publications

• C. Feller, T. A. Johansen, S. Olaru, Combinatorial multi-parametric quadratic programming with saturation matrix based pruning, IEEE Conf. Decision and Control, Maui, 2012
• E. I. Grøtli, T. A. Johansen, Path- and data transmission planning for cooperating UAVs in delay tolerant network, The 3rd International Workshop on Wireless Networking & Control for Unmanned Autonomous Vehicles: Architectures, Protocols and Applications (GC'12 Workshop - Wi-UAV), 2012
• D. T. Ho, E. I. Grøtli, S. Shimamoto, T. A. Johansen, Optimal Relay Path Selection and Cooperative Communication Protocol for a Swarm of UAVs, The 3rd International Workshop on Wireless Networking & Control for Unmanned Autonomous Vehicles: Architectures, Protocols and Applications (GC'12 Workshop - Wi-UAV), 2012
• D. G. Sbarbaro, M. Vauhkonen, T. A. Johansen, Linear inverse problems and state estimation: Regularization, Observability and Convergence, 15th IFAC Workshop on Control Applications of Optimization, Rimini, 2012
• A. Grancharova, E. I. Grøtli, T. A. Johansen, Distributed Path Planning for a UAV Communication Chain by Dual Decomposition, 2nd IFAC Workshop on Multivehicle Systems, Espoo, 2012
• A. Veksler, T. A. Johansen, R. Skjetne, Transient power control in dynamic positioning - governor feedforward and dynamic thrust allocation, IFAC Conference on Manoeuvring and Control of Marine Craft, Arenzano,2012
• A. Grancharova, T. A. Johansen, Suboptimality analysis of distributed quasi-nonlinear model predictive control, IFAC Conference on Nonlinear Model Predictive Control, Noordwijkerhout, the Netherlands, 2012
• H. F. Grip, T. I. Fossen, T. A. Johansen, A. Saberi, A Nonlinear Observer for Integration of GNSS and IMU Measurements with Gyro Bias Estimation, American Control Conference, Montreal, 2012
• E. I. Grøtli, T. A. Johansen, Task assignment for cooperating UAVs under radio propagation path loss constraints, American Control Conference, Montreal, 2012
• A. Veksler, T. A. Johansen, R. Skjetne, Thrust allocation with power management functionality on dynamically positioned vessels, American Control Conference, Montreal, 2012
• X. Wang, H. F. Grip, A. Saberi, T. A. Johansen, A new low-and-high gain feedback design using MPC for global stabilization of linear systems subject to input saturation, American Control Conference, Montreal, 2012
• T. Poloni, A. A. Eielsen, B. Rohal-Ilkiv, T. A. Johansen, Moving Horizon Observer for Vibration Dynamics with Plant Uncertainties in Nanopositioning System Estimation, American Control Conference, Montreal, 2012
• D. Sui, R. Nybø, S. Hovland, T. A. Johansen, A Moving Horizon Observer for Estimation of Bottomhole Pressure during Drilling, IFAC Workshop on Automatic Control in Offshore Oil and Gas Production, Trondheim, 2012
• A. Grancharova, E. I. Grtli, T. A. Johansen, Distributed Model Predictive Control of UAVs under Radio Communication Path Loss Constraints, IFAC Conference on Embedded Systems, Computational Intelligence and Telematics in Control, Wuerzburg, Germany, 2012

2011

Book chapters

• T. A. Johansen, Introduction to Nonlinear Model Predictive Control and Moving Horizon Estimation, in Selected Topics on Constrained and Nonlinear Control, STU/NTNU, ISBN 978-80-968627-4-0, 2011

Journal publications

• H. F. Grip, A. Saberi, T. A. Johansen, Estimation of States and Parameters for Linear Systems with Nonlinearly Parameterized Perturbations, Systems & Control Letters, Vol. 60, pp. 771-777, 2011; doi:10.1016/j.sysconle.2011.03.012
• S. M. Hosseini, T. A. Johansen, A. Fatehi, Comparison of Nonlinearity Measures based on Time Series Analysis for Nonlinearity Detection, Modeling Identification and Control, Vol. 32, pp. 123-140, 2011; DOI 10.4173/mic.2011.4.1
• D. Sui, T. A. Johansen, Moving Horizon Observer with Regularization for Detectable Systems without Persistence of Excitation, Int. J. Control, Vol. 84, pp. 1041-1054, 2011; DOI: 10.1080/00207179.2011.589081
• F. Bayat, T. A. Johansen, A. A. Jalali, Using hash tables to manage time-storage complexity in point location problem: Application to Explicit MPC, Automatica, Vol. 47, pp. 571-577, 2011; doi:10.1016/j.automatica.2011.01.009
• A.Grancharova, T. A. Johansen, Design and Comparison of Explicit Model Predictive Controllers for an Electropneumatic Clutch Actuator Using On/Off Valves, IEEE/ASME Trans. Mechatronics, Vol. 16, pp. 665 - 673, 2011; DOI 10.1109/TMECH.2010.2049365, (printed article)
• A.Grancharova, J. Kocijan, T. A. Johansen, Explicit output-feedback nonlinear predictive control based on black-box models, Engineering Applications of AI, Vol. 24, pp. 388-297, 2011; doi:10.1016/j.engappai.2010.10.009
• C. R. Gutvik, T. A. Johansen, A. O. Brubakk, Optimal Decompression of Divers - Procedures for constraining predicted bubble growth, IEEE Control Systems Magazine, Vol. 31, No. 1, pp. 19-28, 2011; 10.1109/MCS.2010.939141, (printed article)

Conference publications

• M. Hanger, T. A. Johansen, G. K. Mykland, Aa. Skullestad, Dynamic Model Predictive Control Allocation using CVXGEN, 9th IEEE International Conference on Control & Automation (ICCA11), Santiago, Chile, pp. pp. 417-422, 2011
• D. Sui and T. A. Johansen, Exponential Stability of Regularized Moving Horizon Observer for N-Detectable Nonlinear Systems. 9th IEEE International Conference on Control & Automation (ICCA11), Santiago, Chile, pp. 806-811, 2011
• H. F. Grip, A. Saberi, T. A. Johansen, Observers for Cascaded Nonlinear and Linear Systems, 50th IEEE Conference on Decision and Control, Orlando, 2011
• A. A. Eielsen, T. Poloni, T. A. Johansen, J. T. Gravdahl, Experimental Comparison of Online Parameter Identification Schemes for a Nanopositioning Stage with Variable Mass, 2011 IEEE/ASME Int. Conf. Advanced Intelligent Mechatronics, Budapest, 2011
• H. F. Grip, A. Saberi, T. A. Johansen, State and Parameter Estimation for Nonlinearly Parameterized Systems: An H-infinity-Based Approach, IFAC World Congress, Milano, 2011
• A. Grancharova, T. A. Johansen, Distributed Quasi-Nonlinear Model Predictive Control by Dual Decomposition, IFAC World Congress, Milano, 2011
• H. Langjord, G.-O. Kaasa, T. A. Johansen, Adaptive observer-based switched control for electropneumatic clutch actuator with position sensor, IFAC World Congress, Milano, 2011
• M. Paasche, T. A. Johansen, L. S. Imsland, Estimation of Bottomhole Pressure during Oil Well Drilling Using Regularized Adaptive Nonlinear Moving Horizon Observer, IFAC World Congress, Milano, 2011
• H. F. Grip, T. I. Fossen, T. A. Johansen, A. Saberi, Attitude Estimation Using Biased Gyro and Vectorial Measurements with Time-Varying Reference Vectors, IFAC World Congress, Milano, 2011
• F. Bayat, T. A. Johansen, A. A. Jalali, Combining Truncated Binary Search Tree and Direct Search for Flexible Piecewise Function Evaluation for Explicit MPC in Embedded Microcontrollers, IFAC World Congress, Milano, 2011
• E. I. Grøtli, T. A. Johansen, Path planning for UAVs under communication constraints using SPLAT! and MILP, International Conference on Unmanned Aircraft Systems (ICUAS'11), Denver, 2011
• F. Bayat, T. A. Johansen, A. A. Jalali, Flexible piecewise function evaluation methods with application to explicit model predictive control, IEEE Int. Conf. Mechatronics, Istanbul, 2011
• A. Grancharova, A. Johansen, Explicit Nonlinear Model Predictive Control Based оn Orthogonal Partition: а Review, Anniversary Conference "40 Years of Department of Automation" at the University of Chemical Technology and Metallurgy, Sofia, 2011
• D. Sui and T. A. Johansen, Regularized Nonlinear Moving Horizon Observer Theory and application to automotive friction estimation, Workshop on constrained and nonlinear control, STU Bratislava, 2011

2010

Journal publications

• H. Langjord and T. A. Johansen, Dual-mode switched control of an electropneumatic clutch actuator, IEEE/ASME Trans. Mechatronics, Vol. 15, pp. 969 981, 2010, DOI: 10.1109/TMECH.2009.2036172
• D. Sui, T. A. Johansen, L. Feng, Linear Moving Horizon Estimation With Pre-estimating Observer, IEEE Trans. Automatic Control, Vol. 55, pp. 2363 - 2368, 2010; DOI: 10.1109/TAC.2010.2053060 
• S. M. Elgsæter, O. Slupphaug, T. A. Johansen, A structure approach to optimizing offshore oil and gas production with uncertain models, Computers and Chemical Engineering, Vol. 34, pp. 163-176, 2010; doi:10.1016/j.compchemeng.2009.07.011 
• J. Tjønnås, T. A. Johansen, Stabilization of Automotive Vehicles using Active Steering and Adaptive Brake Control Allocation, IEEE Trans. Control Systems Technology, accepted, 2010; DOI:10.1109/TCST.2009.2023981 
• H. F. Grip, T. A. Johansen, L. Imsland, G.-O. Kaasa, Parameter Estimation and Compensation in Systems with Nonlinearly Parameterized Perturbations, Automatica, Vol. 46, pp. 19-28, 2010; doi:10.1016/j.automatica.2009.10.013

Conference publications

• A. Grancharova and T. A. Johansen, A computational approach to explicit feedback stochastic nonlinear model predictive control, IEEE Conf. Decision and Control, Atlanta, 2010
• T. Poloni, B. Rohal-Ilkiv, T. A. Johansen, Damped One-Mode Vibration Model State and Parameter Estimation via Pre-Filtered Moving Horizon Observer, 5th IFAC Symposium on Mechatronic Systems, Boston, 2010
• T. Poloni, B. Rohal-Ilkiv, D. Alberer, L. del Re and T. A. Johansen, Comparison of Sensor Configurations for Mass Flow Estimation of Turbocharged Diesel Engines, Workshop on Identification for Automotive Systems, Linz, Austria, 2010
• D. Sui, T. A. Johansen, Moving Horizon Estimation for Tire-Road Friction During Braking, IEEE Multi-conference of Systems and Control, Yokohama, 2010; DOI: 10.1109/CCA.2010.5611307 
• D. Sui, T. A. Johansen, Regularized Nonlinear Moving Horizon Observer for Detectable Systems, IFAC NOLCOS, Bologna, Italy, 2010
• L. Feng, C. R. Gutvik, T. A. Johansen, Optimal Decompression Through Multi-parametric Nonlinear Programming, IFAC NOLCOS, Bologna, Italy, 2010
• H. Langjord, G.-O. Kaasa, T. A. Johansen, Nonlinear observer and parameter estimation for electropneumatic clutch actuator, IFAC NOLCOS, Bologna, Italy, 2010
• A. Grancharova, J. Kocijan, T. A. Johansen, Dual-mode Explicit Output-feedback Predictive Control Based on Neural Network Models, IFAC NOLCOS, Bologna, Italy, 2010
• M. Bakke, T. A. Johansen, S. Skogestad, Effect of Varying Controller Parameters in Closed-Loop Subspace Identification, IFAC DYCOPS, Leuven, Belgium, 2010
• F. Bayat, T. A. Johansen, A. A. Jalali, Managing time-storage complexity in point location problem: Application to Explicit Model Predictive Control, IEEE 18th Mediterranean Conference on Control and Automation, Marrakech, 2010; DOI: 10.1109/MED.2010.5547804 

 2009

Journal publications

• M. V. Ottermo, Ø. Stavdahl, T. A. Johansen, A Remote Palpation Instrument for Laparoscopic Surgery: Design and Performance, Minimally Invasive Therapy & Allied Technologies (MITAT), Vol. 18, No. 5, pp. 1-14, 2009 (printed version).
• H. F. Grip, L. Imsland, T. A. Johansen, J. C. Kalkkuhl, A. Suissa, Vehicle Sideslip Estimation Design, implementation and experimental validation, IEEE Control Systems Magazine, Vol. 29, No. 5, pp. 36-52, 2009
• L. Pivano, T. A. Johansen, Ø. N. Smogeli, A Four-Quadrant Thrust Controller for Marine Propellers with Loss Estimation and Anti-Spin: Theory and Experiments, SNAME J. Marine Technology, Vol. 46, pp. 229-242, 2009
• T. A. Johansen, M. Hovd, The Department of Engineering Cybernetics at NTNU from 1994 into the future, Modeling, Identification and Control, Vol. 30, pp.127-132, 2009
• J. Spjøtvold, E. C. Kerrigan, T. A. Johansen, D. Q. Mayne, Inf-Sup Control of Discontinuous Piecewise Affine Systems, International Journal of Robust and Nonlinear Control, Vol. 19, pp. 1471-1492, 2009
• A. Grancharova, T. A. Johansen, Computation, approximation and stability of explicit feedback min-max nonlinear model predictive control, Automatica, Vol. 45, pp. 1134-1143, 2009
• L. Pivano, T. A. Johansen, خ N. Smogeli, A Four-Quadrant Thrust Estimation Scheme for Marine Propellers: Theory and Experiments, IEEE Transactions on Control Systems Technology, Vol. 17, pp. 215-226, 2009 (printed version).

Book chapters

• T. Fossen, T. A. Johansen, T. Perez, A Survey of Control Allocation Methods for Underwater Vehicles. In "Intelligent Underwater Vehicles. I-Tech Education and Publishing, Vienna, 2009. <Open Access: http://books.i-techonline.com/>
• A. Grancharova, T. A. Johansen, Explicit Approximate Model Predictive Control of Constrained Nonlinear Systems with Quantized Inputs, In L. Magni, D. Raimondo, F. Allgower, editors, Assessment and Future Directions of Nonlinear Model Predictive Control. Springer Lecture Notes in Control and Information Sciences, Springer Verlag, 2009

Conference publications

• J. Spjøtvold, T. A. Johansen, Fault Tolerant Control Allocation for a Thruster-Controlled Floating Platform using Parametric Programming, IEEE Conf. Decision and Control, Shanghai, 2009
• H. F. Grip, A. Saberi, T. A. Johansen, State and Parameter Estimation for Linear Systems with Nonlinearly Parameterized Perturbations, IEEE Conf. Decision and Control, Shanghai, 2009 (corrigendum).
• L. Feng, C. R. Gutvik, T. A. Johansen, D. Sui, Barrier Function Nonlinear Optimization for Optimal Decompression of Divers, IEEE Conf. Decision and Control, Shanghai, 2009
• T. A. Johansen, A. J. Sørensen, Experiences with HIL simulator testing of power management systems, MTS Dynamic Positioning Conference, Houston, TX, 2009
• H. Langjord, T. A. Johansen, C. Bratli, Dual-mode switched control of an electropneumatic clutch actuator with input restrictions, European Control Conference, Budapest, 2009
• A. Grancharova, T. A. Johansen, Explicit Model Predictive Control of an Electropneumatic Clutch Actuator Using On/Off Valves and Pulse-width Modulation, European Control Conference, Budapest, 2009
• M. B. Alberding, J. Tjønnås, T. A. Johansen, Nonlinear Hierarchical Control Allocation for Vehicle Yaw Stabilization and Rollover Prevention, European Control Conference, Budapest, 2009
• A. Grancharova, T. A. Johansen, Approaches to Explicit Nonlinear Model Predictive Control with Reduced Partition Complexity, European Control Conference, Budapest, 2009
• H. F. Grip, L. Imsland, T. A. Johansen, J. C. Kalkkuhl, A. Suissa, Estimation of Road Inclination and Bank Angle in Automotive Vehicles, American Control Conference, St. Louis, 2009

2008

Journal publications

·        J. Tjønnås, T. A. Johansen, Adaptive Control Allocation, Automatica, Vol. 44, pp. 2754-2766, 2008

·        M. V. Ottermo, Ø. Stavdahl, T. A. Johansen, Design and Performance of a Prototype Tactile Shape Display for Minimally Invasive Surgery, Haptics-E Journal, 2008

·        D. Radan, A. J. Sørensen, A. K. Ådnanes, T. A. Johansen, Reducing Power Load Fluctuations on Ships using Power Redistribution Control, SNAME J. Marine Technology, Vol. 45, pp. 162-174, 2008

·        T. Poloni, T. A. Johansen, B. Rohal-Ilkiv, Modeling of Air-Fuel Ratio Dynamics of Gasoline Combustion Engine with ARX network, ASME J. Dynamic Systems Measuremeant Control, Vol. 130, November, 2008

·        A. Grancharova, J. Kocijan, T. A. Johansen, Explicit stochastic predictive control of combustion plants based on Gaussian process models, Automatica, Vol. 44, pp. 1621-1631, 2008

·        H. F. Grip, L. Imsland, T. A. Johansen, T. I. Fossen, J. C. Kalkkuhl, A. Suissa, Nonlinear vehicle side-slip estimation with friction adaptation, Automatica, Vol. 44, pp. 611-622, 2008

·        J. Bakkeheim, T. A. Johansen, Ø. N. Smogeli, A. J. Sørensen, Lyapunov-based Integrator Resetting with Application to Marine Thruster Control, IEEE Transactions on Control Systems Technology, Vol. 16, pp. 908-917, 2008

·        T. A. Johansen, T. P. Fuglseth, P. Tøndel, T. I. Fossen, Optimal constrained control allocation in marine surface vessels with rudders, Control Engineering Practise, Vol. 16,  pp. 457-464, 2008

Book chapters

• L. S. Imsland, H. F. Grip, T. A. Johansen, T. I. Fossen, J. C. Kalkkuhl, A. Suissa, Nonlinear Observer for Lateral Velocity with Friction and Road Bank Adaptation Validation and Comparison with an Extended Kalman Filter, SAE 2007 Transactions Journal of Passenger Cars - Mechanical Systems , pp. 722-734, 2008 (ISBN 978-0-7680-1985-8)

Conference publications

·        A. Grancharova, T. A. Johansen, Explicit Approximate Model Predictive Control of Constrained Nonlinear Systems with Quantized Inputs, International Workshop on Assessment and Future Directions of NMPC, Pavia, Italy, 2008 (revised ).

·        A. Grancharova, T. A. Johansen, Explicit solution of regulation control problems for nonlinear systems with quantized inputs, Automatics and Information Conference, Sofia, 2008

·        L. Pivano, J. Bakkeheim, T. A. Johansen, Ø. N. Smogeli, A Four-Quadrant Thrust Controller for Marine Propellers with Loss Estimation and Anti-Spin, IFAC World Congress, Seoul, South-Korea, 2008

·        H. F. Grip, T. A. Johansen, L. Imsland, Estimation and Control for Systems with Nonlinearly Parameterized Perturbations, IFAC World Congress, Seoul, South-Korea, 2008

·        H. Langjord, T. A. Johansen, S. R. Snare, C. Bratli, Estimation of electro-pneumatic clutch actuator load characteristics, IFAC World Congress, Seoul, South-Korea, 2008

·        S. Elgsæter, O.Slupphaug, T. A. Johansen, Oil and Gas Production Optimization; Lost Potential due to Uncertainty, IFAC World Congress, Seoul, South-Korea, 2008

·        H. Langjord, T. A. Johansen, J. P. Hespanha, Switched control of an electro-pneumatic clutch actuator using on/off valves, American Control Conference, Seattle, 2008

·        S. Elgsæter, O.Slupphaug, T. A. Johansen, Production Optimization; System Identification and Uncertainty Estimation , Intelligent Energy Conference, Amsterdam, 2008, SPE 11218

2007

Journal publications

·        H. P. Bieker, O. Slupphaug, T. A. Johansen, Real-Time Production Optimization of Oil and Gas Production Systems: A Technology Survey, SPE J. Production and Operations, pp. 382-391, vol. 22, 2007

·        L. S. Imsland, H. F. Grip, T. A. Johansen, T. I. Fossen, On nonlinear unknown input observers applied to lateral velocity vehicle velocity estimation on banked roads, Int. J. Control, pp. 1741-1750, Vol. 80, 2007

·        J. Spjøtvold, P. Tøndel, T. A. Johansen, A continuous selection and unique polyhedral representation of solutions to convex multiparametric quadratic programs, J. Optimization Theory and Applications, Vol. 134, pp. 177-189, 2007

·        T. A. Johansen, W. Jackson, R. Schreiber, P. Tøndel, Hardware Synthesis of Explicit Model Predictive Controllers, IEEE Transactions Control Systems Technology, vol. 15, pp. 191-197, 2007

·        P. W. J. van de Ven, T. A. Johansen, A. J. Sørensen, C. Flanagan, D. Toal, Neural network augmented identification of underwater vehicle models, Control Engineering Practice, vol. 15, pp. 715-725, 2007

Book chapters

• L. S. Imsland, T. A. Johansen, T. I. Fossen, J. C. Kalkkuhl and A. Suissa, Vehicle Velocity Estimation using Nonlinear Observers, SAE 2006 Transactions Journal of Passenger Cars Mechanical Systems, pp. 1204-1213, 2007
• A. Grancharova, T. A. Johansen, P. Tøndel, Computational Aspects of Approximate Explicit Nonlinear Model Predictive Control, In L. Biegler F. Allgower and R. Findeisen, editors, Assessment and Future Directions of Nonlinear Model Predictive Control. Springer Lecture Notes in Control and Information Sciences, Springer Verlag, 2007

Conference publications

·        S. Elgsæter, O.Slupphaug, T.A. Johansen, Challenges in Parameter Estimation of Models for Offshore Oil and Gas Production Optimization , International Petroleum Technology Conference, Dubai, 2007, IPTC 11728

·        J. Tjønnås, T. A. Johansen, Optimizing Adaptive Control Allocation with Actuator Dynamics, CDC, New Orleans, 2007

·        D. Radan, A. J. Srensen, T. A. Johansen, Inertial control of marine engines and propellers, IFAC CAMS, Croatia, 2007

·        E. Børhaug, L. Pivano, K. Y. Pettersen, T. A. Johansen, A model-based ocean current observer for 6-DOF underwater vehicles, IFAC CAMS, Croatia, 2007

·        L. Pivano, L. L. Whitcomb, T. A. Johansen, T. I. Fossen, Preliminary simulation studies of a new four-quadrant propeller thrust controller applied to underwater vehicles, IFAC CAMS, Croatia, 2007

·        J. Bakkeheim, L. Pivano, T. A. Johansen, Ø. N. Smogeli, Integrator reset anti-spin for marine thrusters operating in four-quadrants and extreme sea conditions, IFAC CAMS, Croatia, 2007

·        M. Blanke, L. Pivano, T. A. Johansen, An efficient optimizing propeller speed control for ships in moderate seas - model experiments and simulation, IFAC CAMS, Croatia, 2007

·        T. A. Johansen, A. J. Sørensen, O. J. Nordahl, O. Mo and T. I. Fossen. Experiences from Hardware-in-the-loop (HIL) Testing of Dynamic Positioning and Power Management Systems. OSV Singapore, 24-25 September 2007

·        A. Grancharova, J. Kocijan, T. A. Johansen, Explicit approximate nonlinear predictive control based on neural network models, Automatics and Information, Sofia, Bulgaria, 2007

·        T. Poloni, B. Rohal-Ilkiv, T. A. Johansen, Multiple ARX model-based air-fuel ratio predictive control for SI engines, 3rd IFAC Workshop on Advanced Fuzzy and Neural Control, Valenciennes, Franca, 2007

·        J. Tjønnås, T. A. Johansen, On optimizing nonlinear adaptive control allocation with actuator dynamics, 7th IFAC Symposium on Nonlinear Control Systems, Pretoria, South Africa, 2007

·        J. Spjøtvold, E. C. Kerrigan, S. V. Rakovic, D. Q. Mayne, T. A. Johansen, Constrained Optimal Control of Discontinuous Piecewise Affine Systems with Disturbances, European Control Conference, Kos, Greece, 2007

·        A. Grancharova, J. Kocijan, T. A. Johansen, Explicit Stochastic Nonlinear Model Predictive Control Based on Gaussian Process Models, European Control Conference, Kos, Greece, 2007

·        H. P. Bieker, O. Slupphaug, T. A. Johansen, Well Management under Uncertain Gas or Water Oil Ratios, SPE Digital Energy, Houston, SPE 106959, 2007

·        L. Imsland, H. F. Grip, T. A. Johansen, T. I. Fossen, J. C. Kalkkuhl, A. Suissa, Nonlinear Observer for Lateral Velocity with Friction and Road Bank Adaptation Validation and Comparison with an Extended Kalman Filter, SAE World Congress, Detroit, 2007

·        H. Sande, T. A. Johansen, G.-O. Kaasa, S. R. Snare, C. Bratli, Switched backstepping control of an electropneumatic clutch actuator using on/off valves, American Control Conference, New York, 2007

·        L. Pivano, T. A. Johansen, Ø. N. Smogeli, T. I. Fossen, Nonlinear Thrust Controller for Marine Propellers in Four-Quadrant Operations, American Control Conference, New York, 2007

2006

Journal publications

·        M. V. Ottermo, M. Øvstedal, T. Langø, Ø. Stavdahl, Y. Yavuz, T. A. Johansen, R. Mårvik, The role of tactile feedback in laparoscopic surgery, Surgical Laparoscopy Endoscopy & Percutaneous Techniques, Vol. 16, pp. 390-400, 2006

·        L. Imsland, T. A. Johansen, T. I. Fossen, H. F. Grip, J. C. Kalkkuhl, A. Suissa, Vehicle Velocity Estimation using Nonlinear Observers, Automatica, Vol. 42, pp. 2091-2103, 2006

·        J. Spjtvold, E. C. Kerrigan, C. N. Jones, P. Tøndel, T. A. Johansen, On the Facet-to-Facet Property of Solutions to Convex Parametric Quadratic Programs, Automatica, Vol. 42, pp. 2209-2204, 2006

·        D. Sbarbaro, T. A. Johansen, Analysis of Artificial Neural Networks for Pattern Based Adaptive Control, IEEE Transactions on Neural Networks, vol. 17, pp. 1184-1193, 2006. (printed version).

·        J. Bakkeheim and T. A. Johansen, Transient performance, resetting and filtering in nonlinear multiple model adaptive control, IEE Proceedings D, Control Theory and Applications, Vol. 153, pp. 536-545, 2006. (printed version)

Conference publications

·        L. Pivano, Ø. N. Smogeli, T. A. Johansen, T. I. Fossen, Marine Propeller Thrust Estimation in Four-Quadrant Operations, IEEE Conf. Decision and Control, San Diego, 2006

·        J. Bakkeheim, Ø. N. Smogeli, T. A. Johansen, A. J. Sørensen, Improved Transient Performance by Lyapunov-based Integrator Reset of PI Thruster Control in Extreme Seas, IEEE Conf. Decision and Control, San Diego, 2006

·        J. Tjønnås, A. Chaillet, E. V. Panteley, T. A. Johansen, Cascaded lemma for set-stable systems, IEEE Conf. Decision and Control, San Diego, 2006

·        A. Grancharova, T. A. Johansen, Explicit approximate approach to feedback min-max model predictive control of constrained nonlinear systems, IEEE Conf. Decision and Control, San Diego, 2006

·        H. F. Grip, L. S. Imsland, T. A. Johansen, T. I. Fossen, J. C. Kalkkuhl and A. Suissa, Nonlinear Vehicle Velocity Observer with Road-Tire Friction Adaptation, IEEE Conf. Decision and Control, San Diego, 2006

·        J. Spjøtvold, S. V. Rakovic, P. Tøndel, T. A. Johansen, Utilizing Reachability Analysis in Point Location Problems, IEEE Conf. Decision and Control, San Diego, 2006

·        L. Pivano, Ø. N. Smogeli, T. A. Johansen, T. I. Fossen, Experimental Validation of a Marine Propeller Thrust Estimation Scheme, IFAC Conference on Manoeuvring and Control of Marine Craft, Lisbon, 2006

·        H. P. Bieker, O. Slupphaug, T. A. Johansen, Global Optimization of Multiphase Flow Networks in Oil andor Gas Production Systems, AIChE Annual Meeting, San Francisco, 2006

·        H. P. Bieker, O. Slupphaug, T. A. Johansen, Optimal Well-Test Strategy for Production Optimization: A Monte Carlo Simulation Approach, SPE Eastern Regional Meeting, Canton, OH, USA, SPE-104535, 2006

·        M. V. Ottermo, Ø. Stavdahl, T. A. Johansen, A Remote Palpation Instrument for Laparoscopic Surgery: Design and Performance, Biomedical Engineering Society Annual Meeting, Chicago, 2006

·        D. Radan, A. J. Sørensen, T. A. Johansen, A. K. Ådnanes, Probability based generator commitment optimization in ship power system design, WSEAS Conference at Athens, Greece, 2006

·        E. S. Idsø, B. A. Saunders, L. Duffell, T. A. Johansen, K. J. Hunt, Quantitative assessment of force distribution for FES cycling, 11th Annual Conference of the International FES Society, Zao, Japan, 2006

·        L. Imsland, H. F. Grip, C. Bohm, T. A. Johansen, T. I. Fossen, J. C. Kalkkuhl, A. Suissa, Nonlinear observer for vehicle lateral velocity, Workshop on Automotive Systems and Control, Lund, 2006

·        J. Tjønnås, T. A. Johansen, Adaptive Optimizing Dynamic Control Allocation Algorithm for Yaw Stabilization of an Automotive Vehicle using Brakes, 14th Mediterranean Conference on Control and Automation, Ancona, 2006

·        T. I. Fossen and T. A. Johansen, A Survey of Control Allocation Methods for Ships and Underwater Vehicles, 14th Mediterranean Conference on Control and Automation, Ancona, 2006

·        A. Grancharova, T. A. Johansen and P. Tøndel, Input-to-state stability of constrained approximate explicit model predictive control with uncertainty, IFAC Workshop on Nonlinear Model Predictive Control for Fast Systems, Grenoble, 2006

·        J. Spjøtvold, E. C. Kerrigan, C. N. Jones, P. Tøndel, T. A. Johansen, The Facet-to-Facet Property of Solutions to Convex Parametric Quadratic Programs and a new Exploration Strategy, 17th International Symposium on Mathematical Theory of Networks and Systems, Kyoto, Japan, 2006

·        J. Spjøtvold, P. Tøndel, T. A. Johansen, Decomposing Linear Control Allocation Problems, 17th International Symposium on Mathematical Theory of Networks and Systems, Kyoto, Japan, 2006

·        T. A. Johansen, W. Jackson, R. Schreiber, P. Tøndel, Hardware Architecture Design for Explicit Model Predictive Control, American Control Conference, Minneapolis, 2006

·        L. S. Imsland, T. A. Johansen, T. I. Fossen, J. C. Kalkkuhl and A. Suissa, Nonlinear Observers for Vehicle Velocity Estimation, SAE World Congress, Detroit, 2006

·        L. Pivano, T. I. Fossen and T. A. Johansen, Nonlinear model identification of a marine propeller over four-quadrant operations, IFAC Symposium on System Identification, Newcastle, Australia, 2006

·        P. van de Ven, J. Refsnes, T. A. Johansen, C. Flanagan, and D. Toal, Identification of Minesnipers damping parameters using neural networks, IFAC Symposium on System Identification, Newcastle, Australia, 2006

·        H. P. Bieker, O. Slupphaug and T.A. Johansen, Real Time Production Optimization of Offshore Hydrocarbon Production Plants: Technology Survey, SPE 99446-PP, SPE Digital Energy Conference and Exhibition, Amsterdam, 2006

2005

Journal publications

·        D. Radan, T. A. Johansen, A. J. Sørensen, A. K. Ådnanes, Optimization of Load Dependent Start Tables in Marine Power Management Systems with Blackout Prevention, WSEAS Trans. Circuits and Systems, Issue 12, Vol. 4, December 2005

·        T. A. Johansen, and D. Sbarbaro, Lyapunov-based optimizing control of nonlinear blending processes, IEEE Transactions Control Systems Technology, Vol. 13, pp. 631-638, 2005

·        T. A. Johansen, T. I. Fossen, P. Tøndel, Efficient Optimal Constrained Control Allocation via Multi-Parametric Programming, AIAA J. Guidance, Control and Dynamics, Vol. 28, pp. 506-515, 2005

Book chapters

• A. Grancharova and T. A. Johansen, "Survey of explicit approaches to constrained optimal control", in "Switching and Learning in Feedback Systems", R. Shorten and R. Murray-Smith, LNCS 3355, Springer Verlag, 2005

Conference publications

·        L. S. Imsland, T. A. Johansen, T. I. Fossen, J. C. Kalkkuhl and A. Suissa, Vehicle Velocity Estimation using Modular Nonlinear Observers, IEEE Conf. Decision and Control / European Control Conference, Sevilla, Spain, 2005

·        J. Hansen, R. Murray-Smith and T. A. Johansen, Nonparametric Identification of Linearizations and Uncertainty using Gaussian Process Models - Application to Robust Wheel Slip Control, IEEE Conf. Decision and Control / European Control Conference, Sevilla, Spain, 2005

·        T. A. Johansen, T. I. Fossen, B. Vik, Hardware-in-the-loop testing of DP systems, Dynamic Positioning Conference, Houston, Texas, 2005

·        D. Radan, T. A. Johansen, A. J. Sørensen, A. K. Ådnanes, Optimization of load-dependent start tables in marine power management systems with blackout prevention, 2nd WSEAS / IASME Int. Conf. Electroscience and Technology for Naval Engineering and All-Electric Ship, Miami, FL, 2005

·        A. Grancharova, T. A. Johansen, and P. Tøndel, Computational aspects of approximate explicit model predictive control, International workshop on Assessment and Future Directions of Nonlinear Model Predictive Control, Freudenstadt-Lauterbad, Germany, 2005

·        J. Tjønnås, T. A. Johansen, Optimizing Nonlinear Adaptive Control Allocation, IFAC World Congress, Prague, 2005

·        A. Grancharova and T. A. Johansen, Explicit min-max model predictive control of constrained nonlinear systems with model uncertainty, IFAC World Congress, Prague, 2005

·        J. Spjøtvold, P. Tøndel, and T. A. Johansen, A Method for Obtaining Continuous Solutions to Multiparametric Linear Programs, IFAC World Congress, Prague, 2005

·        J. Spjøtvold, P. Tøndel, and T. A. Johansen, Uniqueness of a Polyhedral Representation to a Continuous Selection for Convex Multiparamtric Quadratic Problems, American Control Conference, Portland, 2005

·        P. Tøndel, and T. A. Johansen, Control allocation for Yaw Stabilization in Automotive Vehicles using Multiparametric Nonlinear Programming, American Control Conference, Portland, 2005

·        M. V. Ottermo, Ø. Stavdahl, and T. A. Johansen, Electromechanical design of a miniature tactile shape display for minimally invasive surgery, World Haptics Conference, Pisa, Italy, 2005

2004

Journal publications

• A. Grancharova, T. A. Johansen and J. Kocijan, Explicit model predictive control of gas-liquid separation plant, Computers and Chemical Engineering, Vol. 28, pp. 2481-2491, 2004
• A. Grancharova, T. A. Johansen, Explicit approaches to constrained model predictive control: A survey, Modeling, Identification and Control, Vol. 25, pp. 131-158, 2004
• T. A. Johansen, Approximate Explicit Receding Horizon Control of Constrained Nonlinear Systems, Automatica, Vol. 40, pp. 293-300, 2004
• T. A. Johansen, T. I. Fossen, Svein P. Berge, Constrained Nonlinear Control Allocation with Singularity Avoidance using Sequential Quadratic Programming, IEEE Trans. Control Systems Technology, Vol. 12, pp. 211-216, 2004
• K. Maertens, T. A. Johansen, R. Babuska, Engine load prediction in off-road vehicles using multi-objective nonlinear identification, Control Engineering Practice, Vol. 12, pp. 615-624, 2004

Conference publications

• T. A. Johansen, Optimizing nonlinear control allocation, IEEE Conf. Decision and Control, Nassau, Bahamas, pp. 3435-3440, 2004
• Ø. Smogeli, J. Hansen, A. Sørensen, T. A. Johansen, Anti-spin control for marine propulsion systems, IEEE Conf. Decision and Control, Nassau, Bahamas, pp. 5348- 5353, 2004
• M. V. Ottermo, Ø. Stavdahl, and T. A. Johansen, Palpation Instrument for Augmented Minimally Invasive Surgery, IEEE/RSJ International Conference on Intelligent Robots and Systems, Sendai, Japan, 2004
• E. S. Idsø, T. A. Johansen, K. J. Hunt, Finding the metabolically energy-optimal pattern for FES-cycling, 9th Annual Conference of the Int. FES Society, Bournemouth, UK, 2004
• A. Ross, T. I. Fossen, and T. A. Johansen, Identification of underwater vehicle hydrodynamic coefficients using free decay tests, IFAC Conference on Control Applications in Marine Systems, Ancona, Italy, 2004
• P. W. J. van der Veen, T. A. Johansen, A. J. Sørensen, C. Flanagan, D. Toal, Neural network augmented identification of underwater vehicle models, IFAC Symposium on Control Applications in Marine Systems, Ancona, Italy, 2004
• J. Hansen and T. A. Johansen, Transient performance, resetting and filtering in nonlinear multiple model adaptive control, American Control Conference, Boston, 2004

2003

Journal publications

• T. A. Johansen, T. I. Fossen, S. I. Sagatun, F. G. Nielsen, Wave synchronizing crane control during water entry in offshore moonpool operations - experimental results, J. Oceanic Engineering, Vol. 29, pp.720-728, 2003 (printed version).
• T. A. Johansen, I. Petersen, J. Kalkkuhl, J. Ludemann, Gain-scheduled wheel slip control in automotive brake systems, IEEE Trans. Control Systems Technology, Vol. 11, pp. 799-811, 2003 (printed version)
• T. A. Johansen, O.  Egeland, E. A. Johannessen, R. Kvamsdal, Dynamics and control of a free-piston diesel engine, ASME J. Dynamic Systems, Measurement and Control, Vol. 125, pp. 468-574, 2003
• T. A. Johansen, R. Babuska, Multi-objective identification of Takagi-Sugeno Fuzzy Models, IEEE Trans. Fuzzy Systems, Vol. 11, pp. 847-860, 2003 (printed version)
• T. A. Johansen and A. Grancharova, Approximate explicit constrained linear model predictive control via orthogonal search tree, IEEE Trans. Automatic Control, Vol. 48, pp. 810-815, 2003 (printed version)
• T. A. Johansen, Reduced Explicit Constrained Linear Quadratic Regulators, IEEE Trans. Automatic Control, Vol. 48, pp. 823-828, 2003 (printed version)
• P. Tøndel, T. A. Johansen and A. Bemporad, An algorithm for multi-parametric quadratic programming and explicit MPC solutions, Automatica, Vol. 39, pp. 489-497, 2003
• P. Tøndel, T. A. Johansen and A. Bemporad, Evaluation of Piecewise Affine Control via Binary Search Tree, Automatica, Vol. 39, pp. 743-749, 2003

Book chapters

• J. Kalkkuhl and T. A. Johansen and J. Ludemann, "Nonlinear adaptive backstepping with estimator resetting using multiple observers", in "Nonlinear and Hybrid Systems in Automotive Control", R. Johansson and A. Rantzer (Eds.), ISBN 1-85233-652-8, Springer Verlag 2003
• Idar Petersen, T. A. Johansen, J. Kalkkuhl and J. Ludemann, "Wheel slip control in ABS using gain scheduled LQR", in Nonlinear and Hybrid Systems in Automotive Control, R. Johansson and A. Rantzer (Eds.), ISBN 1-85233-652-8, Springer Verlag 2003

Conference publications

• P. Tøndel, T. A. Johansen and A. Bemporad, Further results on Multi-parametric quadratic programming, IEEE Conf. Decision and Control, Maui, Hawaii, 2003
• T. A. Johansen, T. P. Fuglseth, P. Tøndel, and T. I. Fossen, Optimal constrained control allocation in marine surface vessels with rudders, IFAC Conf. Manoeuvring and Control of Marine Craft, Girona, 2003
• T. A. Johansen, D. Sbarbaro, Optimizing control of over-actuated linear systems with nonlinear output maps via control Lyapunov functions, European Control Conference, Cambridge, 2003.
• A. Grancharova, T. A. Johansen and J. Kocijan, Explicit model predictive control of gas-liquid separation plant, European Control Conference, Cambridge, 2003
• A. Grancharova and T. A. Johansen, Design of robust explicit model predictive controller via orthogonal search tree partitioning, European Control Conference, Cambridge, 2003
• P. Tøndel and T. A. Johansen, Lateral vehicle stabilization using constrained optimal control, European Control Conference, Cambridge, 2003
• Idar Petersen, T. A. Johansen, J. Kalkkuhl and J. Ludemann, Wheel slip control using gain-schjeduled LQ - LPV/LMI analysis and experimental results, European Control Conference, Cambridge, 2003
• E. S. Idsø, T. A. Johansen, K. J. Hunt, A Simplified Nonlinear Biomechanical Model for FES-cycling, International Functional Electrical Stimulation Society Conference, Brisbane, Australia, 2003
• A. Grancharova, T. A. Johansen, J. Kocijan and D. Vrancic, Design of reduced dimension explicit model predictive controller for a gas-liquid separation plant, Eurocon Conference, Ljubljana, Slovenia, 2003
• A. Grancharova and T. A. Johansen, Reduced dimension approach to approximate explicit model predictive control, IFAC Conference on Control Systems Design, Bratislava, 2003

2002

Journal publications

• T. A. Johansen, I. Petersen and O. Slupphaug, Explicit Subopitmal Linear Quadratic Regulation with Input and State Constraints,  Automatica, Vol. 38, pp. 1099-1111, 2002
• T. A. Johansen and C. Storaa,  "Energy-Based Control of a Distributed Solar Collector Field", Automatica, Vol. 38, pp. 1191-1199, 2002
• J. Kalkkuhl, T. A. Johansen, J. Ludemann, Improved  transient performance of nonlinear adaptive backstepping using estimator  resetting based on multiple models, IEEE Trans. Automatic Control,  Vol. 47, pp. 136-140, Jan 2002
• T. A. Johansen, O.  Egeland, E. A. Johannessen, R. Kvamsdal, Free-Piston  Diesel Engine Timing and Control - Towards Electronic Cam- and Crankshaft,  IEEE  Trans. Control Systems Technology , Vol. 10, pp. 177-190, 2002

Conference publications

• P. Tøndel, T. A. Johansen and A. Bemporad, Computation and Approximation of Piecewise Affine Control via Binary Search Tree, IEEE Conf. Decision and Control, Las Vegas, NV, Vol. 3, pp. 3144-3149, 2002
• T. A. Johansen, Structured and Reduced Dimension Explicit Linear Quadratic Regulators for Systems with Constraints, IEEE Conf. Decision and Control, Las Vegas, NV, Vol. 4, pp. 3970-3975, 2002
• T. A. Johansen, On Multi-parametric Nonlinear Programming and Explicit Nonlinear Model Predictive Control, IEEE Conf. Decision and Control, Las Vegas, NV, Vol. 3, pp. 2768-2773, 2002
• S. I. Sagatun, T. A. Johansen, T. I. Fossen and F. G. Nielsen, Wave synchronizing crane control during water entry in offshore moonpool operations, IEEE Conf. Control Applications, Glasgow, 2002
• A. Grancharova and T. A. Johansen, Approximate Explicit Model Predictive Control Incorporating Heuristics, IEEE Conf. Computer Aided Control Design, Glasgow, Vol. 1, pp. 174-179, 2002
• P. Tøndel, T. A. Johansen, Complexity reduction in explicit model predictive control, IFAC World Congress, Barcelona, 2002
• T. A. Johansen and A. Grancharova, Approximate explicit model predictive control implemented via orthogonal search tree partitioning, IFAC World Congress, Barcelona, 2002
• T. A. Johansen and R. Babuska, On multi-objective identification of Takagi-Sugeno fuzzy model parameters, IFAC World Congress, Barcelona, 2002

2001

Journal publications

• J. Vada, O. Slupphaug, T. A. Johansen and Bjarne A. Foss, Linear MPC with Optimal Prioritized Infeasibility Handling: Application, Computational Issues and Stability, Automatica, Vol. 37, pp. 1835-1843, 2001
• J. Vada, O. Slupphaug and T. A. Johansen, "Efficient Optimal Prioritized Infeasibility Handling in Model Predictive Control - a Parametric Preemptive Multi-objective Linear Programming Approach" , Journal Optimization Theory and Applications, May 2001

Conference publications

• P. Tøndel, T. A. Johansen and A. Bemporad, An algorithm for multi-parametric quadratic programming and explicit MPC solutions, IEEE Conf. Decision and Control, Orlando, Vol. 2, pp. 1199-1204, 2001
• Idar Petersen, T. A. Johansen, J. Kalkkuhl and J. Ludemann, Wheel slip control in ABS using gain scheduled constrained LQR, ECC 2001, Porto
• T. A. Johansen, O. Egeland, E. A. Johannessen, R. Kvamsdal, Free-Piston Diesel Engine Dynamics and Control, ACC 2001, Arlington
• T. A. Johansen, J. Kalkkuhl, J. Ludemann, Idar Petersen, Hybrid Control Strategies in ABS, ACC 2001, Arlington
• J. Kalkkuhl, T. A. Johansen, J. Ludemann, A. Queda, Nonlinear Adaptive Backstepping with Estimator Resetting using Multiple Observers, Workshop on Hybrid Systems, Computation and Control, Rome, 2001

2000

Journal publications

• T. A. Johansen, "Computation of Lyapunov Functions for Smooth Nonlinear Systems using Convex Optimization", Automatica, Vol. 36, pp. 1617-1626, 2000
• T. A. Johansen and  Olav Slupphaug, "Comments on "Stability issues on Takagi-Sugeno Fuzzy Model - Parametric Approach"", IEEE Trans. Fuzzy Systems , Vol. 8, p. 345, 2000
• T. A. Johansen, R. Shorten and R. Murray-Smith, "On the Interpretation and Identification of Takagi-Sugeno Fuzzy Models" , IEEE Trans. Fuzzy Systems, Vol. 8, pp. 297-313, 2000
• Tor A. Johansen, K. Hunt and Idar Petersen, Gain scheduled control of a solar power plant, Control Engineering Practice, 2000
• K. Hunt, T. A. Johansen, J. Kalkkuhl, H. Fritz and Th. Gøttsche, "Nonlinear Speed Control for an Experimental Vehicle using a Generalized Gain Scheduling Approach", IEEE Transactions on Control Systems Technology, Vol. 8, pp. 381-395, 2000

Conference publications

• T. A. Johansen, Idar Petersen and O. Slupphaug, Explicit Subopitmal Linear Quadratic Regulation with Input and State Constraints" , CDC 2000, Sydney
• T. A. Johansen and K. J. Hunt, "A computational approach to approximate input/state feedback linearization" , CDC 2000, Sydney
• T. A. Johansen, "Computational Performance Analysis of Nonlinear Dynamic Systems using Semi-infinite Programming", CDC 2000, Sydney
• M. S. Branicky, T. A. Johansen, Idar Petersen, and E. Frazzoli, "Online Techniques for Behavioral Programming", IEEE CDC, Sydney, 2000
• T. A. Johansen, Multi-objective identification of FIR models, IFAC SYSID 2000, Santa Barbara, USA
• Ana Isabel Gonzalez Santos, Tor A Johansen, Jesus Ma Zamarreno Cosme, "Nonlinear Multiple Model Predictive Control in a Fed-batch Reactor" , IFAC Symposium on Artificial Intelligence in Real-time Control, Budapest, 2000
• J. Vada, O. Slupphaug, T. A. Johansen and B. A. Foss, Stabilizing Linear MPC with Efficient Prioritized Infeasibility Handling , IFAC ADCHEM 2000, Pisa, Italy.

Before 2000

Journal publications

• T. A. Johansen and E. Weyer, On convergence proofs in system identification- Towards a general principle using ideas from Learning Theory, Systems and Control Letters, Vol. 34, pp. 85-92, 1998.
• T. A. Johansen, B. A. Foss, ORBIT - Operating Regime Based Modeling and Identification Toolkit , Control Engineering Practice, Vol. 6, pp. 1277-1286, 1998.
• T. A. Johansen, K. Hunt and H. Fritz, A Software Environment for Gain Scheduled Local Controller Network Design , IEEE Control Systems Magazine, pp. 48-60, April 1998.
• T. A. Johansen, K. Hunt , P. J. Gawthrop and H. Fritz, Off-equilibrium linearisation and design of gain scheduled control with application to vehicle speed control, Control Engineering Practice, Vol. 6, pp 167-180, 1998.
• T. A. Johansen, On Tikhonov Regularization, Bias and Variance in Nonlinear System Identification , Automatica, Vol. 33, pp. 441-446, 1997.
• T. A. Johansen and B. A. Foss, Operating Regime Based Process Modeling and Identification, Computers and Chemical Engineering, Vol. 21, pp. 159-176, 1997.
• D. Sbarbaro and T. A. Johansen, Multiple Local Laguerre Models for Modelling Nonlinear Dynamic Systems of the Wiener Class, Proc. IEE, Part D, 1997.
• Th. Gøttsche, K. J. Hunt and T. A. Johansen, Nonlinear dynamics modelling via operating regime decomposition, IMACS Journal on Mathematics and Computers in Simulation, 1997.
• K. J. Hunt and T. A. Johansen, Design and Analysis of Gain-Scheduled Control using Local Controller Networks, Int. J. Control, Vol. 66, pp. 619-651, 1997.
• T. A. Johansen, Identification of Non-linear Systems using Empirical Data and Prior Knowledge - An Optimization Approach, Automatica, Vol. 32, pp. 337-356, 1996.
• K. J. Hunt, J. C. Kalkkuhl, H. Fritz and T. A. Johansen, Constructive Empirical Modelling of Longitudinal Vehicle Dynamics with Local Model Networks, Control Engineering Practice, Vol. 4, pp. 167-178, 1996.
• T. A. Johansen and P. A. Ioannou, Robust Adaptive Control of Minimum phase Nonlinear Systems, Int. J. Adaptive Control and Signal Processing, 1996.
• B. A. Foss, T. A. Johansen and A. V. Sørensen, Nonlinear Predictive Control using Local Models - Applied to a Batch Fermentation Process, Control Engineering Practice, 1995.
• T. A. Johansen and B. A. Foss, Identification of non-linear System Structure and Parameters using Regime Decomposition, Automatica, Vol. 31, pp. 321-326, 1995.
• T. A. Johansen, Fuzzy Model Based Control. Stability, Robustness, and Peformance Issues, IEEE Trans. on Fuzzy Systems, Vol. 2, pp. 221-234, 1994.
• T. A. Johansen and B. A. Foss, Constructing NARMAX models using ARMAX models, Int. J. Control, 58, pp. 1125-1153, 1993.
• T. A. Johansen and B. A. Foss, A NARMAX Model Representation for Adaptive Control based on Local Models, Modeling, Identification, and Control, 13, pp. 25-39, 1992.

Conference publications (since 1995)

• J. Vada , O. Slupphaug and T. A. Johansen, Efficient Infeasibility Handling in Linear MPC subject to Prioritized Constraints , European Control Conference 1999 (ECC'99), Karlsruhe, Germany.
• R. Murray-Smith, T. A. Johansen and R. Shorten, "On Transient Dynamics, Off-equilibrium Behaviour and Identification in Blended Multiple Model Structures", European Control Conference 1999 (ECC'99), Karlsruhe, Germany.
• F. Martinsen, B. A. Foss and T. A. Johansen, "A control relevant dynamic model of grate sintering", IEEE Conf. Control Applications, Hawaii, 1999.
• T. A. Johansen, "Characterization of Lyapunov Functions for Smooth Nonlinear Systems using LMIs", IFAC World Congress, Beijing, July 1999.
• K. J. Hunt, J. Kalkkuhl, H. Fritz, Tor A. Johansen and Th. Goettsche, "Experimental Comparison of Nonlinear Control Strategies for Vehicle Speed Control", IEEE Conf. Control Applications, Trieste, 1998.
• T. A. Johansen, "Constrained and Regularized System Identification", IFAC Symposium on System Identification, Fukuoka, July 1997.
• T. A. Johansen, B. A. Foss, "ORBIT - Operating Regime Based Modeling and Identification Toolkit" , IFAC Symposium on System Identification, Fukuoka, July 1997.
• B. A. Foss and T. A. Johansen, "Identification and Convexity in Optimizing Control", IFAC Symposium on System Identification, Fukuoka, July 1997.
• T. A. Johansen, "Stability, Performance and Robustness of Fuzzy Model Based Control" , IEEE Conf. Decision and Control, Kobe, December 1996.
• T. A. Johansen, "Robust Identification of Takagi-Sugeno-Kang Fuzzy Models using Regularization" , IEEE Conf. Fuzzy Systems, New Orleans, September 1996.
• T. A. Johansen, "Weightled l2-norms for Analysis of an Adaptive Control Loop based on a Non-linear Model", Proc. 34th IEEE CDC, New Orleans, December 1995.
• T. A. Johansen and E. Weyer, "Structure Identification using Separate Validation Data - Asymptotic Properties ", Proc. European Control Conference, Rome, Vol. 1, pp. 833-838, September 1995.
• R. Murray-Smith and Tor A. Johansen, "Local Learning in Local Model Networks", Proc. IEE Int. Conf. Artificial Neural Networks, Cambridge, UK, pp. 40-46, June 1995.
• T. A. Johansen, B. A. Foss, "Empirical Modeling of a Heat Transfer Process using Local Models and Interpolation" ,Proc. American Control Conference, Seattle, WA, pp. 3654-3658, 1995.
• T. A. Johansen, "On the Optimality of the Takagi-Sugeno-Kang Fuzzy Inference Mechanism" , Proceedings of the IEEE Conference on Fuzzy Systems, Yokohama, March 1995.

Books

• R. Murray-Smith and T. A. Johansen (Editors), "Multiple Model Appraoches to Modelling and Control", Taylor & Francis, London, 1997.

Book chapters

• T. A. Johansen, K. J. Hunt and P. J. Gawthrop, "Transient Performance, Robustness and Off-equilibrium Linearization in Fuzzy Gain Scheduled Control", in R. Palm, D. Driankov and H. Hellendoorn (Eds), ``Advances in Fuzzy Control", Physica-Verlag, 1997.
• R. Murray-Smith and T. A. Johansen, "Local Learning in Local Model Networks", in R. Murray-Smith and T. A. Johansen (Eds.), `'Multiple Model Appraoches to Modelling and Control'', Taylor & Francis, London, 1997.
• T. A. Johansen and R. Murray-Smith, "The Operating Regime Approach to Nonlinear Modelling and Control", in R. Murray-Smith and T. A. Johansen (Eds.), `'Multiple Model Appraoches to Modelling and Control'', Taylor & Francis, London, 1997.
• T. A. Johansen and M. M. Polycarpou, "Stable Adaptive Control of a General Class of Non-linear Systems", R. W. Zbikowski and K. J. Hunt (Eds.) Neural Adaptive Control Technology I, World Scientific, 1996.
• T. A. Johansen and B. A. Foss, "Semi-Empirical Modeling of Non-Linear Dynamic Systems through Identification of Operating Regimes and Local Models", in K. Hunt, G. Irwin, K. Warwick (Eds.) Neural Network Engineering in Dynamic Control Systems, Springer-Verlag, 1995.
• B. A. Foss and T. A. Johansen, ``Local Modeling as a tool for semi- empirical and semi-mechanistic process modeling``, in ``Neural Networks for Chemical Engineers``, A. B. Bulsari (Ed), Elsevier, Amsterdam, pp. 297-334, 1995.

Dr.Ing. Thesis

 

·       T. A. Johansen, "Operating Regime based Process Modeling and Identification", PhD thesis (Dr.Ing), Norwegian University of Science and Technology, 1994